0041027: Optimize masterdata incremental refresh process

diff -r fc8eea1df2d4 -r dcdaa8c28650 src-db/database/sourcedata/AD_MESSAGE.xml
--- a/src-db/database/sourcedata/AD_MESSAGE.xml	Mon Aug 26 12:05:12 2019 +0200
+++ b/src-db/database/sourcedata/AD_MESSAGE.xml	Wed Jul 31 17:55:38 2019 +0200
@@ -1876,6 +1876,18 @@
 <!--C4E1B578B13840ADA3BC8092798E743A-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
 <!--C4E1B578B13840ADA3BC8092798E743A--></AD_MESSAGE>
 
+<!--C768AEA530B44845ACBDA07AA15CF291--><AD_MESSAGE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MESSAGE_ID><![CDATA[C768AEA530B44845ACBDA07AA15CF291]]></AD_MESSAGE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <VALUE><![CDATA[OBMOBC_MasterdataRequestError]]></VALUE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTEXT><![CDATA[There was an error in the masterdata requests, aborted current refresh]]></MSGTEXT>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTYPE><![CDATA[W]]></MSGTYPE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
+<!--C768AEA530B44845ACBDA07AA15CF291--></AD_MESSAGE>
+
 <!--C88B6F2C58B3477BAEA816BF54559E50--><AD_MESSAGE>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_MESSAGE_ID><![CDATA[C88B6F2C58B3477BAEA816BF54559E50]]></AD_MESSAGE_ID>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r fc8eea1df2d4 -r dcdaa8c28650 src-db/database/sourcedata/AD_PREFERENCE.xml
--- a/src-db/database/sourcedata/AD_PREFERENCE.xml	Mon Aug 26 12:05:12 2019 +0200
+++ b/src-db/database/sourcedata/AD_PREFERENCE.xml	Wed Jul 31 17:55:38 2019 +0200
@@ -22,6 +22,17 @@
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C--></AD_PREFERENCE>
 
+<!--0280B1B0ED464B34924688C1C678A52A--><AD_PREFERENCE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_PREFERENCE_ID><![CDATA[0280B1B0ED464B34924688C1C678A52A]]></AD_PREFERENCE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <VALUE><![CDATA[Y]]></VALUE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <PROPERTY><![CDATA[OBMOBC_NotAutoLoadIncrementalAtLogin]]></PROPERTY>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISPROPERTYLIST><![CDATA[Y]]></ISPROPERTYLIST>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A--></AD_PREFERENCE>
+
 <!--18639B6C06B44324A65D199CD8A32440--><AD_PREFERENCE>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_PREFERENCE_ID><![CDATA[18639B6C06B44324A65D199CD8A32440]]></AD_PREFERENCE_ID>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r fc8eea1df2d4 -r dcdaa8c28650 src-db/database/sourcedata/AD_REF_LIST.xml
--- a/src-db/database/sourcedata/AD_REF_LIST.xml	Mon Aug 26 12:05:12 2019 +0200
+++ b/src-db/database/sourcedata/AD_REF_LIST.xml	Wed Jul 31 17:55:38 2019 +0200
@@ -307,6 +307,18 @@
 <!--645E9EE10111462CB8C4E6B9E504CEA3-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
 <!--645E9EE10111462CB8C4E6B9E504CEA3--></AD_REF_LIST>
 
+<!--6E6E9B37800B4F50AAAD606330E887C3--><AD_REF_LIST>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REF_LIST_ID><![CDATA[6E6E9B37800B4F50AAAD606330E887C3]]></AD_REF_LIST_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <VALUE><![CDATA[OBMOBC_BackgroundMasterdataMaxSize]]></VALUE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <NAME><![CDATA[Background Masterdata Maximum Size]]></NAME>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <DESCRIPTION><![CDATA[Maximum size for all models for incremental masterdata refresh in background. Value -1 disable the background refresh of the masterdata]]></DESCRIPTION>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REFERENCE_ID><![CDATA[A26BA480E2014707B47257024C3CBFF7]]></AD_REFERENCE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3--></AD_REF_LIST>
+
 <!--73967117B13C4B5EAEA505E04A7E80A3--><AD_REF_LIST>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_REF_LIST_ID><![CDATA[73967117B13C4B5EAEA505E04A7E80A3]]></AD_REF_LIST_ID>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r fc8eea1df2d4 -r dcdaa8c28650 web/org.openbravo.mobile.core/source/data/ob-dal.js
--- a/web/org.openbravo.mobile.core/source/data/ob-dal.js	Mon Aug 26 12:05:12 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-dal.js	Wed Jul 31 17:55:38 2019 +0200
@@ -2164,7 +2164,14 @@
    *
    *
    */
-  OB.Dal.loadModels = function(online, models, data, incremental, callback) {
+  OB.Dal.loadModels = function(
+    online,
+    models,
+    data,
+    incremental,
+    callback,
+    background
+  ) {
     var timestamp = 0;
     var key;
 
@@ -2209,6 +2216,7 @@
         // We can safely set the POSLastIncRefresh timestamp now.
         OB.UTIL.localStorage.setItem("POSLastIncRefresh", new Date().getTime());
         dalLoadModelsCallback();
+        return;
       }
       if (
         OB.MobileApp.model.get("modelsToLoad").length === 0 &&
@@ -2436,36 +2444,40 @@
                   }
                 }
               };
-              OB.Data.localDB.transaction(
-                function(tx) {
-                  tx.executeSql(
-                    "select count(1) as totalRecords from " +
-                      item.prototype.tableName,
-                    [],
-                    function(tx, result) {
-                      logMsgForTransaction(
-                        true,
-                        item.prototype.modelName,
-                        result.rows.item(0).totalRecords
-                      );
-                      checkRecordsWithBackend(
-                        item.prototype.modelName,
-                        result.rows.item(0).totalRecords
-                      );
-                    },
-                    function() {
-                      logMsgForTransaction(false, item.prototype.modelName);
-                    }
-                  );
-                },
-                function(errorMsg) {
-                  OB.error(errorMsg);
-                  finishTransaction();
-                },
-                function() {
-                  finishTransaction();
-                }
-              );
+              if (incremental) {
+                finishTransaction();
+              } else {
+                OB.Data.localDB.transaction(
+                  function(tx) {
+                    tx.executeSql(
+                      'select count(1) as totalRecords from ' +
+                        item.prototype.tableName,
+                      [],
+                      function(tx, result) {
+                        logMsgForTransaction(
+                          true,
+                          item.prototype.modelName,
+                          result.rows.item(0).totalRecords
+                        );
+                        checkRecordsWithBackend(
+                          item.prototype.modelName,
+                          result.rows.item(0).totalRecords
+                        );
+                      },
+                      function() {
+                        logMsgForTransaction(false, item.prototype.modelName);
+                      }
+                    );
+                  },
+                  function(errorMsg) {
+                    OB.error(errorMsg);
+                    finishTransaction();
+                  },
+                  function() {
+                    finishTransaction();
+                  }
+                );
+              }
             }
 
             // Skip load of models if it's a incremental refresh and the request timeout has been reached
@@ -2481,7 +2493,7 @@
             item.params.terminalTime = currentDate;
             item.params.terminalTimeOffset = currentDate.getTimezoneOffset();
           }
-          ds.load(item.params, incremental);
+          ds.load(item.params, incremental, background);
         }
       } else if (
         item &&
diff -r fc8eea1df2d4 -r dcdaa8c28650 web/org.openbravo.mobile.core/source/data/ob-datasource.js
--- a/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Mon Aug 26 12:05:12 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Wed Jul 31 17:55:38 2019 +0200
@@ -20,6 +20,8 @@
     OB.DS.requestAllowed = isAllowed;
   };
 
+  OB.DS.masterdataBackgroundModels = {}; // To store the models loaded in the masterdata refresh done in background
+
   function serviceSuccess(inSender, inResponse, callback, tx) {
     if (inResponse._entityname) {
       callback([inResponse]);
@@ -616,15 +618,8 @@
   };
   _.extend(OB.DS.DataSource.prototype, Backbone.Events);
 
-  OB.DS.DataSource.prototype.load = function(params, incremental) {
+  OB.DS.DataSource.prototype.load = function(params, incremental, background) {
     this.modelPagination = 1;
-    OB.info(
-      "[sdreresh-" +
-        (incremental ? "inc" : "full") +
-        "] The model " +
-        this.request.model.prototype.modelName +
-        " has started masterdata load"
-    );
     var me = this,
       handleError,
       handleIncrementalRequest,
@@ -644,29 +639,67 @@
 
       me.trigger("ready", "failed");
     };
-    handleIncrementalRequest = function(
-      limit,
-      offset,
-      params,
-      incremental,
-      lastId
+
+    const updateModelLastUpdatedTimestamp = function(
+      lastUpdated,
+      data,
+      totalRows
     ) {
-      params = params || {};
-      params._limit = limit;
-      params._offset = offset;
-      params._count = OB.UTIL.localStorage.getItem(
-        "recordsFromBackendFor" + me.request.model.prototype.modelName
-      )
-        ? parseInt(
+      if (lastUpdated && data.length > 0) {
+        if (
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) &&
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) !== 'null'
+        ) {
+          OB.UTIL.localStorage.setItem(
+            'lastUpdatedTimestamp' + me.request.model.prototype.modelName,
             OB.UTIL.localStorage.getItem(
-              "recordsFromBackendFor" + me.request.model.prototype.modelName
-            ),
-            10
-          )
-        : 0;
-      params._isMasterdata = true;
-      params.overrideDefaultTimeout = true;
-      params.lastId = lastId;
+              'requestTimestamp' + me.request.model.prototype.modelName
+            )
+          );
+        } else {
+          OB.error(
+            '[lastUpdatedTimestamp] ' +
+              'local storage (lastUpdatedTimestamp' +
+              me.request.model.prototype.modelName +
+              ') attempted to be set as null. Ignored. Current Value: ' +
+              OB.UTIL.localStorage.getItem(
+                'lastUpdatedTimestamp' + me.request.model.prototype.modelName
+              )
+          );
+        }
+        OB.UTIL.localStorage.removeItem(
+          'requestTimestamp' + me.request.model.prototype.modelName
+        );
+        OB.UTIL.localStorage.setItem(
+          'recordsFromBackendFor' + me.request.model.prototype.modelName,
+          totalRows
+        );
+      } else {
+        if (
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) &&
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) !== 'null'
+        ) {
+          OB.UTIL.localStorage.setItem(
+            'lastUpdatedTimestamp' + me.request.model.prototype.modelName,
+            OB.UTIL.localStorage.getItem(
+              'requestTimestamp' + me.request.model.prototype.modelName
+            )
+          );
+        }
+      }
+    };
+
+    const doModelRequest = function(params, functionSave, errorCallback) {
+      var offset = params._offset;
+      var limit = params._limit;
       if (offset === 0) {
         OB.UTIL.localStorage.setItem(
           "requestTimestamp" + me.request.model.prototype.modelName,
@@ -685,6 +718,10 @@
           ])
         );
       }
+      delete params._data;
+      delete params._model;
+      delete params._lastUpdated;
+      delete params._totalRows;
       me.request.exec(
         params,
         function(data, message, lastUpdated, totalRows) {
@@ -726,7 +763,8 @@
                 offset + limit,
                 params,
                 incremental,
-                newLastId
+                newLastId,
+                background
               );
             } else {
               OB.UTIL.completeLoadingStep();
@@ -744,106 +782,44 @@
                   " records in the pagination " +
                   me.modelPagination
               );
-              OB.info(
-                "[sdreresh-" +
-                  (incremental ? "inc" : "full") +
-                  "] The model " +
-                  me.request.model.prototype.modelName +
-                  " has finished loading with a total of " +
-                  dataLoaded +
-                  " records. " +
-                  (me.modelPagination === 1
-                    ? "There was no pagination."
-                    : "The number of paginations created were " +
-                      me.modelPagination)
-              );
-              if (lastUpdated && data.length > 0) {
-                if (
-                  OB.UTIL.localStorage.getItem(
-                    "requestTimestamp" + me.request.model.prototype.modelName
-                  ) &&
-                  OB.UTIL.localStorage.getItem(
-                    "requestTimestamp" + me.request.model.prototype.modelName
-                  ) !== "null"
-                ) {
-                  OB.UTIL.localStorage.setItem(
-                    "lastUpdatedTimestamp" +
-                      me.request.model.prototype.modelName,
-                    OB.UTIL.localStorage.getItem(
-                      "requestTimestamp" + me.request.model.prototype.modelName
-                    )
-                  );
-                } else {
-                  OB.error(
-                    "[lastUpdatedTimestamp] " +
-                      "local storage (lastUpdatedTimestamp" +
-                      me.request.model.prototype.modelName +
-                      ") attempted to be set as null. Ignored. Current Value: " +
-                      OB.UTIL.localStorage.getItem(
-                        "lastUpdatedTimestamp" +
-                          me.request.model.prototype.modelName
-                      )
-                  );
-                }
-                OB.UTIL.localStorage.removeItem(
-                  "requestTimestamp" + me.request.model.prototype.modelName
+              if (dataLoaded > 0) {
+                OB.info(
+                  '[sdreresh-' +
+                    (incremental ? 'inc' : 'full') +
+                    '] The model ' +
+                    me.request.model.prototype.modelName +
+                    ' has finished loading with a total of ' +
+                    dataLoaded +
+                    ' records. ' +
+                    (me.modelPagination === 1
+                      ? 'There was no pagination.'
+                      : 'The number of paginations created were ' +
+                        me.modelPagination)
                 );
-                OB.UTIL.localStorage.setItem(
-                  "recordsFromBackendFor" +
-                    me.request.model.prototype.modelName,
-                  totalRows
-                );
-              } else {
-                if (
-                  OB.UTIL.localStorage.getItem(
-                    "requestTimestamp" + me.request.model.prototype.modelName
-                  ) &&
-                  OB.UTIL.localStorage.getItem(
-                    "requestTimestamp" + me.request.model.prototype.modelName
-                  ) !== "null"
-                ) {
-                  OB.UTIL.localStorage.setItem(
-                    "lastUpdatedTimestamp" +
-                      me.request.model.prototype.modelName,
-                    OB.UTIL.localStorage.getItem(
-                      "requestTimestamp" + me.request.model.prototype.modelName
-                    )
-                  );
-                }
               }
+
+              if (background === undefined) {
+                updateModelLastUpdatedTimestamp(lastUpdated, data, totalRows);
+              }
+
               me.trigger("ready");
             }
           }
           if (data.exception) {
             OB.error("Error in datasource: " + data.exception);
+            OB.DS.masterdataBackgroundModels = {};
             me.trigger("ready", "failed");
             return;
           }
           if (me.request.model && me.request.model.prototype.online) {
             me.cache = me.cache ? me.cache.concat(data) : data;
           }
-          if (me.request.model && !me.request.model.prototype.online) {
-            if (offset === 0) {
-              OB.Dal.initCache(
-                me.request.model,
-                data,
-                success,
-                handleError,
-                incremental
-              );
-            } else {
-              OB.Dal.insertData(
-                me.request.model,
-                data,
-                success,
-                handleError,
-                incremental,
-                dataLoaded
-              );
-            }
-          } else {
-            success();
-          }
+
+          params._data = data;
+          params._model = me.request.model;
+          params._lastUpdated = lastUpdated;
+          params._totalRows = totalRows;
+          functionSave(params, success, errorCallback);
         },
         function(data) {
           OB.UTIL.Debug.execute(function() {
@@ -854,6 +830,14 @@
               return;
             }
           });
+          OB.DS.masterdataBackgroundModels = {};
+
+          OB.info(
+            OB.I18N.getLabel('OBMOBC_MasterdataRequestError') +
+              '. URL which failed: ' +
+              me.request.source
+          );
+          OB.UTIL.showI18NWarning('OBMOBC_MasterdataRequestError');
           if (
             data &&
             data.exception &&
@@ -876,6 +860,172 @@
       );
     };
 
+    const doModelDataSave = function(params, success, handleError) {
+      const offset = params._offset;
+      const data = params._data;
+      const model = params._model;
+      if (model && !model.prototype.online) {
+        if (offset === 0) {
+          OB.Dal.initCache(model, data, success, handleError, incremental);
+        } else {
+          OB.Dal.insertData(
+            model,
+            data,
+            success,
+            handleError,
+            incremental,
+            dataLoaded
+          );
+        }
+      } else {
+        success();
+      }
+    };
+
+    const doModelDataSaveInRAM = function(params, success, handleError) {
+      const data = params._data;
+      const limit = params._limit;
+      const currentLength = data.length;
+      const backgroundLimit = OB.MobileApp.model.hasPermission(
+        'OBMOBC_BackgroundMasterdataMaxSize',
+        true
+      )
+        ? OB.MobileApp.model.hasPermission(
+            'OBMOBC_BackgroundMasterdataMaxSize',
+            true
+          )
+        : limit;
+      if (
+        OB.DS.masterdataBackgroundModels['totalLength'] + currentLength >
+        backgroundLimit
+      ) {
+        OB.info(
+          'Failed to do masterdata refresh in background because exceeds the limit of data. Trying normal refresh.'
+        );
+        OB.UTIL.localStorage.setItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.refreshMasterDataForeground();
+        OB.DS.masterdataBackgroundModels = {};
+        return;
+      }
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty(me.request.source)) {
+        OB.DS.masterdataBackgroundModels[me.request.source] = {};
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [];
+      }
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [
+        ...OB.DS.masterdataBackgroundModels[me.request.source]['data'],
+        ...params._data
+      ];
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['model'] =
+        params._model;
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] =
+        params._lastUpdated;
+      OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'] =
+        params._totalRows;
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] =
+        me.request.lastUpdated;
+
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty('totalLength')) {
+        OB.DS.masterdataBackgroundModels['totalLength'] = 0;
+      }
+      OB.DS.masterdataBackgroundModels['totalLength'] += currentLength;
+      success();
+    };
+
+    const doModelReadFromRAM = function(params, functionSave, errorCallback) {
+      if (
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'].length === 0
+      ) {
+        me.trigger('ready');
+        return;
+      }
+      let parameters = {};
+      parameters._data =
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'];
+      parameters._model =
+        OB.DS.masterdataBackgroundModels[me.request.source]['model'];
+      const lastUpdated_ =
+        OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'];
+      const totalRows =
+        OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'];
+      parameters._offset = 0; // in background all the pages are concatenated into one
+
+      const success = function() {
+        OB.info(
+          '[sdreresh-' +
+            (incremental ? 'inc' : 'full') +
+            '] The model ' +
+            me.request.model.prototype.modelName +
+            ' has finished saving in db with a total of ' +
+            parameters._data.length +
+            ' records. '
+        );
+        updateModelLastUpdatedTimestamp(
+          lastUpdated_,
+          parameters._data,
+          totalRows
+        );
+        me.trigger('ready');
+      };
+      functionSave(parameters, success, errorCallback);
+    };
+
+    handleIncrementalRequest = function(
+      limit,
+      offset,
+      params,
+      incremental,
+      lastId,
+      background
+    ) {
+      params = params || {};
+      params._limit = limit;
+      params._offset = offset;
+      params._count = OB.UTIL.localStorage.getItem(
+        'recordsFromBackendFor' + me.request.model.prototype.modelName
+      )
+        ? parseInt(
+            OB.UTIL.localStorage.getItem(
+              'recordsFromBackendFor' + me.request.model.prototype.modelName
+            ),
+            10
+          )
+        : 0;
+      params._isMasterdata = true;
+      params.overrideDefaultTimeout = true;
+      params.lastId = lastId;
+      params.incremental = incremental;
+
+      if (background === undefined) {
+        // foreground
+        doModelRequest(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSave(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      } else if (background === 'background-request') {
+        doModelRequest(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSaveInRAM(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      } else if (background === 'background-save') {
+        doModelReadFromRAM(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSave(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      }
+    };
+
     this.cache = null;
     var lastId = null; // First request don't have lastId
     handleIncrementalRequest(
@@ -887,7 +1037,8 @@
       0,
       params,
       incremental,
-      lastId
+      lastId,
+      background
     );
   };
 
diff -r fc8eea1df2d4 -r dcdaa8c28650 web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
--- a/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Mon Aug 26 12:05:12 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Wed Jul 31 17:55:38 2019 +0200
@@ -1985,7 +1985,7 @@
     OB.UTIL.showLoading(false);
   },
 
-  loadModels: function(windows, incremental, callback) {
+  loadModels: function(windows, incremental, parentCallback, background) {
     var i,
       j,
       windowName,
@@ -1997,6 +1997,16 @@
       c,
       path;
 
+    const callback = function() {
+      OB.info(
+        '[sdrefresh] Finished loading models ' +
+          (incremental ? 'incrementally' : 'full') +
+          '.' +
+          (background ? ' (' + background + ' )' : '')
+      );
+      parentCallback();
+    };
+
     if (OB.MobileApp.model.get("loggedOffline")) {
       if (callback instanceof Function) {
         callback();
@@ -2014,7 +2024,8 @@
     OB.info(
       "[sdrefresh] Load models " +
         (incremental ? "incrementally" : "full") +
-        "."
+        '.' +
+        (background ? ' (' + background + ' )' : '')
     );
 
     for (i = 0; i < windows.length; i++) {
@@ -2056,9 +2067,20 @@
 
     _.extend(datasources, Backbone.Events);
 
-    OB.debug("[sdrefresh] window: " + windowName);
+    OB.debug(
+      '[sdrefresh] window: ' +
+        windowName +
+        (background ? '. (' + background + ' )' : '')
+    );
 
-    OB.Dal.loadModels(false, datasources, null, incremental, callback);
+    OB.Dal.loadModels(
+      false,
+      datasources,
+      null,
+      incremental,
+      callback,
+      background
+    );
 
     this.postLoadModels();
   },

diff -r 542fb729bed2 -r a22a1e7ab7af web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js
--- a/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Mon Aug 26 12:05:12 2019 +0200
+++ b/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Wed Jul 31 17:54:03 2019 +0200
@@ -11,6 +11,9 @@
 
 OB.UTIL = window.OB.UTIL || {};
 
+OB.UTIL.masterdataRefreshStatus = '';
+OB.UTIL.backgroundMasterdataRefreshEnabled;
+
 OB.UTIL.sendLastTerminalStatusValues = function(callback) {
   var process = new OB.DS.Process(
     "org.openbravo.retail.posterminal.process.LastTerminalStatusTimestamps"
@@ -673,12 +676,53 @@
 };
 
 OB.UTIL.checkRefreshMasterData = function() {
+  // this code is called on:
+  // - ticket close
+  // - timeout of force refresh time
+  // - window navigation
   if (
     OB.MobileApp.model.get("refreshMasterdata") === true &&
     OB.UTIL.refreshMasterDataGetProperty("allowedIncrementalRefresh")
   ) {
-    OB.UTIL.clearFlagAndTimersRefreshMasterData();
-    OB.UTIL.refreshMasterData();
+    if (
+      OB.UTIL.backgroundMasterdataIsEnabled() &&
+      !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')
+    ) {
+      // background
+      // this is the save, the request was called in OB.UTIL.loadModelsIncFunc
+      if (OB.UTIL.masterdataRefreshStatus !== 'background-request-finished') {
+        OB.info(
+          "Cannot start masterdata save because the espected status was 'background-request-finished', but it was: " +
+            OB.UTIL.masterdataRefreshStatus
+        );
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        if (OB.DS.masterdataBackgroundModels.totalLength > 0) {
+          OB.UTIL.refreshMasterDataInBackgroundSave();
+        } else {
+          OB.info('No updates in the masterdata.');
+        }
+      }
+    } else {
+      // foreground
+      if (OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')) {
+        OB.info(
+          'Detected that previous masterdata refresh in background has fail because execeeds the limit of data. Trying normal refresh.'
+        );
+      }
+      if (
+        OB.UTIL.masterdataRefreshStatus !== '' &&
+        OB.UTIL.masterdataRefreshStatus !== 'background-request-finished'
+      ) {
+        OB.info(
+          "Cannot start masterdata refresh in foreground because the espected status was '' or 'background-request-finished', but it was: " +
+            OB.UTIL.masterdataRefreshStatus
+        );
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        OB.UTIL.refreshMasterDataForeground();
+      }
+    }
   }
 };
 
@@ -691,7 +735,56 @@
   }
 };
 
-OB.UTIL.refreshMasterData = function() {
+
+OB.UTIL.refreshMasterDataInBackgroundRequest = function() {
+  if (
+    OB.UTIL.masterdataRefreshStatus !== '' &&
+    OB.UTIL.masterdataRefreshStatus !== 'background-request-finished'
+  ) {
+    OB.info(
+      'Cannot start the masterdata requests because the expected status was "" or "background-request-finished" but it was: ' +
+        OB.UTIL.masterdataRefreshStatus
+    );
+    return;
+  }
+  OB.UTIL.masterdataRefreshStatus = 'background-request-started';
+  OB.DS.masterdataBackgroundModels = {};
+  OB.MobileApp.model.loadModels(
+    null,
+    true,
+    function() {
+      OB.UTIL.masterdataRefreshStatus = 'background-request-finished';
+    },
+    'background-request'
+  );
+};
+
+OB.UTIL.refreshMasterDataInBackgroundSave = function() {
+  OB.UTIL.masterdataRefreshStatus = 'background-save-started';
+  if (OB.UTIL.RfidController.isRfidConfigured()) {
+    OB.UTIL.RfidController.disconnectRFIDDevice();
+  }
+  OB.UTIL.startLoadingSteps();
+  OB.MobileApp.model.set('isLoggingIn', true);
+  OB.UTIL.showLoading(true);
+  OB.MobileApp.model.loadModels(
+    null,
+    true,
+    function() {
+      OB.UTIL.masterdataRefreshStatus = '';
+      OB.DS.masterdataBackgroundModels = {};
+      OB.UTIL.showLoading(false);
+      if (OB.UTIL.RfidController.isRfidConfigured()) {
+        OB.UTIL.RfidController.connectRFIDDevice();
+      }
+      OB.MobileApp.model.set('isLoggingIn', false);
+    },
+    'background-save'
+  );
+};
+
+OB.UTIL.refreshMasterDataForeground = function() {
+  OB.DS.masterdataBackgroundModels = {};
   OB.MobileApp.model.set("secondsToRefreshMasterdata", 3);
   var counterIntervalId = null;
   counterIntervalId = setInterval(function() {
@@ -700,6 +793,7 @@
       OB.MobileApp.model.get("secondsToRefreshMasterdata") - 1
     );
     if (OB.MobileApp.model.get("secondsToRefreshMasterdata") === 0) {
+      OB.UTIL.masterdataRefreshStatus = 'foreground-started';
       OB.MobileApp.model.set("refreshMasterdataShowPopup", false);
       clearInterval(counterIntervalId);
       if (OB.UTIL.RfidController.isRfidConfigured()) {
@@ -714,6 +808,8 @@
           OB.UTIL.RfidController.connectRFIDDevice();
         }
         OB.MobileApp.model.set("isLoggingIn", false);
+        OB.UTIL.localStorage.removeItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.masterdataRefreshStatus = '';
       });
     }
   }, 1000);
@@ -796,8 +892,15 @@
     OB.info(msg);
     OB.UTIL.showWarning(msg);
   }
+  if (
+    OB.UTIL.backgroundMasterdataIsEnabled() &&
+    !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')
+  ) {
+    OB.UTIL.refreshMasterDataInBackgroundRequest();
+  }
   OB.MobileApp.model.set("refreshMasterdata", true);
   if (!OB.UTIL.isNullOrUndefined(minShowIncRefresh) && minShowIncRefresh >= 0) {
+    // Forced refresh by timeout, ticket close also calls to checkRefreshMasterData
     var noActivityTimeout = OB.MobileApp.model.get(
       "refreshMasterdataNoActivityTimeout"
     );
@@ -811,3 +914,27 @@
     }
   }
 };
+
+OB.UTIL.backgroundMasterdataIsEnabled = function() {
+  if (OB.UTIL.backgroundMasterdataRefreshEnabled === undefined) {
+    let preferenceValue = OB.MobileApp.model.hasPermission(
+      'OBMOBC_BackgroundMasterdataMaxSize',
+      true
+    );
+    if (
+      !preferenceValue ||
+      (preferenceValue && !isNaN(preferenceValue) && preferenceValue >= 1)
+    ) {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = true;
+    } else {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = false;
+      if (isNaN(preferenceValue)) {
+        OB.warn(
+          'OBMOBC_BackgroundMasterdataMaxSize has a value not numeric: ' +
+            preferenceValue
+        );
+      }
+    }
+  }
+  return OB.UTIL.backgroundMasterdataRefreshEnabled;
+};
\ No newline at end of file

# HG changeset patch
# User Gorka Gil <gorka.gil@openbravo.com>
# Date 1565096957 -7200
# Node ID 74cff7c7a4469593b37761ca694e2977c3a141ae
# Parent  e761289583dceec55570c8ec9b21a687c6b0fe98
Related to issue 41027: Create modulescript to mantain refresh on login in existing instances

diff -r e761289583dc -r 74cff7c7a446 src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027.java	Tue Aug 06 15:09:17 2019 +0200
@@ -0,0 +1,55 @@
+/*
+ ************************************************************************************
+ * Copyright (C) 2019 Openbravo S.L.U.
+ * Licensed under the Openbravo Commercial License version 1.0
+ * You may obtain a copy of the License at http://www.openbravo.com/legal/obcl.html
+ * or in the legal folder of this module distribution.
+ ************************************************************************************
+ */
+
+package org.openbravo.mobile.core.modulescript;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.openbravo.database.ConnectionProvider;
+import org.openbravo.modulescript.ModuleScript;
+import org.openbravo.modulescript.ModuleScriptExecutionLimits;
+import org.openbravo.modulescript.OpenbravoVersion;
+
+/**
+ * 
+ * Previous to 19Q4 masterdata is refreshed in each login or F5.
+ * From 19Q4, this preference OBMOBC_NotAutoLoadIncrementalAtLogin comes set by default to 'Y'.
+ * This module script will mantain the old behaviour for current instalations.
+ *
+ */
+public class MantainMasterdataRefreshBehaviour41027 extends ModuleScript {
+
+  private static final Logger log4j = LogManager.getLogger();
+  private static final String RETAIL_PACK_MODULE_ID = "03FAB282A7BF47D3B1B242AC67F7845B";
+
+  @Override
+  public void execute() {
+    try {
+      ConnectionProvider cp = getConnectionProvider();
+      final boolean preferenceExists = MantainMasterdataRefreshBehaviour41027Data.preferenceCreated(cp);
+      if ( ! preferenceExists ) {
+        MantainMasterdataRefreshBehaviour41027Data.createPreference(cp);
+      }
+    } catch (Exception e) {
+      handleError(e);
+    }
+  }
+
+  @Override
+  protected ModuleScriptExecutionLimits getModuleScriptExecutionLimits() {
+    return new ModuleScriptExecutionLimits(RETAIL_PACK_MODULE_ID, null,
+        new OpenbravoVersion(1, 8, 4700)); // execute when updating till 19Q4
+  }
+
+  @Override
+  protected boolean executeOnInstall() {
+    return false;
+  }
+
+}
diff -r e761289583dc -r 74cff7c7a446 src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027_Data.xsql
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027_Data.xsql	Tue Aug 06 15:09:17 2019 +0200
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+/*
+ ************************************************************************************
+ * Copyright (C) 2019 Openbravo S.L.U.
+ * Licensed under the Openbravo Commercial License version 1.0
+ * You may obtain a copy of the License at http://www.openbravo.com/legal/obcl.html
+ * or in the legal folder of this module distribution.
+ ************************************************************************************
+ */
+-->
+<SqlClass name="MantainMasterdataRefreshBehaviour41027Data" package="org.openbravo.mobile.core.modulescript">
+  <SqlMethod name="preferenceCreated" type="preparedStatement" return="boolean">
+      <Sql>
+        <![CDATA[
+        SELECT count(*) as exist 
+        FROM DUAL 
+        WHERE EXISTS ( 
+          select 1 as num 
+          from ad_preference 
+          where property='OBMOBC_NotAutoLoadIncrementalAtLogin' 
+          and ad_module_id is null
+        )
+        ]]>
+      </Sql>
+  </SqlMethod>
+  <SqlMethod name="createPreference" type="preparedStatement" return="rowcount">
+       <Sql> 
+       <![CDATA[ 
+           INSERT INTO ad_preference (
+           ad_preference_id, ad_client_id, ad_org_id, isactive,
+           createdby, created, updatedby, updated, property, value, selected, ispropertylist
+           ) VALUES (
+           get_uuid(), '0', '0', 'Y', '0', NOW(), '0', NOW(),'OBMOBC_NotAutoLoadIncrementalAtLogin', 'N', 'Y', 'Y')
+         ]]>
+        </Sql>
+   </SqlMethod>
+</SqlClass>
diff -r e761289583dc -r 74cff7c7a446 src-util/modulescript/src/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027Data.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027Data.java	Tue Aug 06 15:09:17 2019 +0200
@@ -0,0 +1,123 @@
+//Sqlc generated V1.O00-1
+package org.openbravo.mobile.core.modulescript;
+
+import java.sql.*;
+
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+
+import javax.servlet.ServletException;
+
+import org.openbravo.data.FieldProvider;
+import org.openbravo.database.ConnectionProvider;
+import org.openbravo.data.UtilSql;
+import org.openbravo.database.SessionInfo;
+
+@SuppressWarnings("serial")
+class MantainMasterdataRefreshBehaviour41027Data implements FieldProvider {
+static Logger log4j = LogManager.getLogger();
+  private String InitRecordNumber="0";
+  public String exist;
+
+  public String getInitRecordNumber() {
+    return InitRecordNumber;
+  }
+
+  public String getField(String fieldName) {
+    if (fieldName.equalsIgnoreCase("exist"))
+      return exist;
+   else {
+     log4j.debug("Field does not exist: " + fieldName);
+     return null;
+   }
+ }
+
+  public static boolean preferenceCreated(ConnectionProvider connectionProvider)    throws ServletException {
+    String strSql = "";
+    strSql = strSql + 
+      "        SELECT count(*) as exist " +
+      "        FROM DUAL " +
+      "        WHERE EXISTS ( " +
+      "          select 1 as num " +
+      "          from ad_preference " +
+      "          where property='OBMOBC_NotAutoLoadIncrementalAtLogin' " +
+      "          and ad_module_id is null" +
+      "        )";
+
+    ResultSet result;
+    boolean boolReturn = false;
+    PreparedStatement st = null;
+
+    try {
+    st = connectionProvider.getPreparedStatement(strSql);
+
+      result = st.executeQuery();
+      if(result.next()) {
+        boolReturn = !UtilSql.getValue(result, "exist").equals("0");
+      }
+      result.close();
+    } catch(SQLException e){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("SQL error in query: " + strSql, e);
+      } else {
+        log4j.error("SQL error in query: " + strSql + " :" + e);
+      }
+      throw new ServletException("@CODE=" + Integer.toString(e.getErrorCode()) + "@" + e.getMessage());
+    } catch(Exception ex){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("Exception in query: " + strSql, ex);
+      } else {
+        log4j.error("Exception in query: " + strSql + " :" + ex);
+      }
+      throw new ServletException("@CODE=@" + ex.getMessage());
+    } finally {
+      try {
+        connectionProvider.releasePreparedStatement(st);
+      } catch(Exception e){
+        log4j.error("Error during release*Statement of query: " + strSql, e);
+      }
+    }
+    return(boolReturn);
+  }
+
+  public static int createPreference(ConnectionProvider connectionProvider)    throws ServletException {
+    String strSql = "";
+    strSql = strSql + 
+      "           INSERT INTO ad_preference (" +
+      "           ad_preference_id, ad_client_id, ad_org_id, isactive," +
+      "           createdby, created, updatedby, updated, property, value, selected, ispropertylist" +
+      "           ) VALUES (" +
+      "           get_uuid(), '0', '0', 'Y', '0', NOW(), '0', NOW(),'OBMOBC_NotAutoLoadIncrementalAtLogin', 'N', 'Y', 'Y')";
+
+    int updateCount = 0;
+    PreparedStatement st = null;
+
+    try {
+    st = connectionProvider.getPreparedStatement(strSql);
+
+      SessionInfo.saveContextInfoIntoDB(connectionProvider.getConnection());
+      updateCount = st.executeUpdate();
+    } catch(SQLException e){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("SQL error in query: " + strSql, e);
+      } else {
+        log4j.error("SQL error in query: " + strSql + " :" + e);
+      }
+      throw new ServletException("@CODE=" + Integer.toString(e.getErrorCode()) + "@" + e.getMessage());
+    } catch(Exception ex){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("Exception in query: " + strSql, ex);
+      } else {
+        log4j.error("Exception in query: " + strSql + " :" + ex);
+      }
+      throw new ServletException("@CODE=@" + ex.getMessage());
+    } finally {
+      try {
+        connectionProvider.releasePreparedStatement(st);
+      } catch(Exception e){
+        log4j.error("Error during release*Statement of query: " + strSql, e);
+      }
+    }
+    return(updateCount);
+  }
+}

diff -r f93d312ddd2f src-db/database/sourcedata/AD_MESSAGE.xml
--- a/src-db/database/sourcedata/AD_MESSAGE.xml	Fri Aug 30 14:39:38 2019 +0200
+++ b/src-db/database/sourcedata/AD_MESSAGE.xml	Fri Aug 30 14:45:25 2019 +0200
@@ -2092,6 +2092,18 @@
 <!--C4E1B578B13840ADA3BC8092798E743A-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
 <!--C4E1B578B13840ADA3BC8092798E743A--></AD_MESSAGE>
 
+<!--C768AEA530B44845ACBDA07AA15CF291--><AD_MESSAGE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MESSAGE_ID><![CDATA[C768AEA530B44845ACBDA07AA15CF291]]></AD_MESSAGE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <VALUE><![CDATA[OBMOBC_MasterdataRequestError]]></VALUE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTEXT><![CDATA[There was an error in the masterdata requests, aborted current refresh]]></MSGTEXT>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTYPE><![CDATA[W]]></MSGTYPE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
+<!--C768AEA530B44845ACBDA07AA15CF291--></AD_MESSAGE>
+
 <!--C88B6F2C58B3477BAEA816BF54559E50--><AD_MESSAGE>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_MESSAGE_ID><![CDATA[C88B6F2C58B3477BAEA816BF54559E50]]></AD_MESSAGE_ID>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r f93d312ddd2f src-db/database/sourcedata/AD_PREFERENCE.xml
--- a/src-db/database/sourcedata/AD_PREFERENCE.xml	Fri Aug 30 14:39:38 2019 +0200
+++ b/src-db/database/sourcedata/AD_PREFERENCE.xml	Fri Aug 30 14:45:25 2019 +0200
@@ -22,6 +22,17 @@
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C--></AD_PREFERENCE>
 
+<!--0280B1B0ED464B34924688C1C678A52A--><AD_PREFERENCE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_PREFERENCE_ID><![CDATA[0280B1B0ED464B34924688C1C678A52A]]></AD_PREFERENCE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <VALUE><![CDATA[Y]]></VALUE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <PROPERTY><![CDATA[OBMOBC_NotAutoLoadIncrementalAtLogin]]></PROPERTY>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISPROPERTYLIST><![CDATA[Y]]></ISPROPERTYLIST>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A--></AD_PREFERENCE>
+
 <!--18639B6C06B44324A65D199CD8A32440--><AD_PREFERENCE>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_PREFERENCE_ID><![CDATA[18639B6C06B44324A65D199CD8A32440]]></AD_PREFERENCE_ID>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r f93d312ddd2f src-db/database/sourcedata/AD_REF_LIST.xml
--- a/src-db/database/sourcedata/AD_REF_LIST.xml	Fri Aug 30 14:39:38 2019 +0200
+++ b/src-db/database/sourcedata/AD_REF_LIST.xml	Fri Aug 30 14:45:25 2019 +0200
@@ -496,6 +496,18 @@
 <!--6D6BEF55A6864548BDF3F2771B669D0C-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
 <!--6D6BEF55A6864548BDF3F2771B669D0C--></AD_REF_LIST>
 
+<!--6E6E9B37800B4F50AAAD606330E887C3--><AD_REF_LIST>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REF_LIST_ID><![CDATA[6E6E9B37800B4F50AAAD606330E887C3]]></AD_REF_LIST_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <VALUE><![CDATA[OBMOBC_BackgroundMasterdataMaxSize]]></VALUE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <NAME><![CDATA[Background Masterdata Maximum Size]]></NAME>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <DESCRIPTION><![CDATA[Maximum size for all models for incremental masterdata refresh in background. Value -1 disable the background refresh of the masterdata]]></DESCRIPTION>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REFERENCE_ID><![CDATA[A26BA480E2014707B47257024C3CBFF7]]></AD_REFERENCE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3--></AD_REF_LIST>
+
 <!--73967117B13C4B5EAEA505E04A7E80A3--><AD_REF_LIST>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_REF_LIST_ID><![CDATA[73967117B13C4B5EAEA505E04A7E80A3]]></AD_REF_LIST_ID>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r f93d312ddd2f src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027.java	Fri Aug 30 14:45:25 2019 +0200
@@ -0,0 +1,55 @@
+/*
+ ************************************************************************************
+ * Copyright (C) 2019 Openbravo S.L.U.
+ * Licensed under the Openbravo Commercial License version 1.0
+ * You may obtain a copy of the License at http://www.openbravo.com/legal/obcl.html
+ * or in the legal folder of this module distribution.
+ ************************************************************************************
+ */
+
+package org.openbravo.mobile.core.modulescript;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.openbravo.database.ConnectionProvider;
+import org.openbravo.modulescript.ModuleScript;
+import org.openbravo.modulescript.ModuleScriptExecutionLimits;
+import org.openbravo.modulescript.OpenbravoVersion;
+
+/**
+ * 
+ * Previous to 19Q4 masterdata is refreshed in each login or F5.
+ * From 19Q4, this preference OBMOBC_NotAutoLoadIncrementalAtLogin comes set by default to 'Y'.
+ * This module script will mantain the old behaviour for current instalations.
+ *
+ */
+public class MantainMasterdataRefreshBehaviour41027 extends ModuleScript {
+
+  private static final Logger log4j = LogManager.getLogger();
+  private static final String RETAIL_PACK_MODULE_ID = "03FAB282A7BF47D3B1B242AC67F7845B";
+
+  @Override
+  public void execute() {
+    try {
+      ConnectionProvider cp = getConnectionProvider();
+      final boolean preferenceExists = MantainMasterdataRefreshBehaviour41027Data.preferenceCreated(cp);
+      if ( ! preferenceExists ) {
+        MantainMasterdataRefreshBehaviour41027Data.createPreference(cp);
+      }
+    } catch (Exception e) {
+      handleError(e);
+    }
+  }
+
+  @Override
+  protected ModuleScriptExecutionLimits getModuleScriptExecutionLimits() {
+    return new ModuleScriptExecutionLimits(RETAIL_PACK_MODULE_ID, null,
+        new OpenbravoVersion(1, 8, 4700)); // execute when updating till 19Q4
+  }
+
+  @Override
+  protected boolean executeOnInstall() {
+    return false;
+  }
+
+}
diff -r f93d312ddd2f src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027_Data.xsql
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027_Data.xsql	Fri Aug 30 14:45:25 2019 +0200
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+/*
+ ************************************************************************************
+ * Copyright (C) 2019 Openbravo S.L.U.
+ * Licensed under the Openbravo Commercial License version 1.0
+ * You may obtain a copy of the License at http://www.openbravo.com/legal/obcl.html
+ * or in the legal folder of this module distribution.
+ ************************************************************************************
+ */
+-->
+<SqlClass name="MantainMasterdataRefreshBehaviour41027Data" package="org.openbravo.mobile.core.modulescript">
+  <SqlMethod name="preferenceCreated" type="preparedStatement" return="boolean">
+      <Sql>
+        <![CDATA[
+        SELECT count(*) as exist 
+        FROM DUAL 
+        WHERE EXISTS ( 
+          select 1 as num 
+          from ad_preference 
+          where property='OBMOBC_NotAutoLoadIncrementalAtLogin' 
+          and ad_module_id is null
+        )
+        ]]>
+      </Sql>
+  </SqlMethod>
+  <SqlMethod name="createPreference" type="preparedStatement" return="rowcount">
+       <Sql> 
+       <![CDATA[ 
+           INSERT INTO ad_preference (
+           ad_preference_id, ad_client_id, ad_org_id, isactive,
+           createdby, created, updatedby, updated, property, value, selected, ispropertylist
+           ) VALUES (
+           get_uuid(), '0', '0', 'Y', '0', NOW(), '0', NOW(),'OBMOBC_NotAutoLoadIncrementalAtLogin', 'N', 'Y', 'Y')
+         ]]>
+        </Sql>
+   </SqlMethod>
+</SqlClass>
diff -r f93d312ddd2f src-util/modulescript/src/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027Data.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src-util/modulescript/src/src/org/openbravo/mobile/core/modulescript/MantainMasterdataRefreshBehaviour41027Data.java	Fri Aug 30 14:45:25 2019 +0200
@@ -0,0 +1,123 @@
+//Sqlc generated V1.O00-1
+package org.openbravo.mobile.core.modulescript;
+
+import java.sql.*;
+
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+
+import javax.servlet.ServletException;
+
+import org.openbravo.data.FieldProvider;
+import org.openbravo.database.ConnectionProvider;
+import org.openbravo.data.UtilSql;
+import org.openbravo.database.SessionInfo;
+
+@SuppressWarnings("serial")
+class MantainMasterdataRefreshBehaviour41027Data implements FieldProvider {
+static Logger log4j = LogManager.getLogger();
+  private String InitRecordNumber="0";
+  public String exist;
+
+  public String getInitRecordNumber() {
+    return InitRecordNumber;
+  }
+
+  public String getField(String fieldName) {
+    if (fieldName.equalsIgnoreCase("exist"))
+      return exist;
+   else {
+     log4j.debug("Field does not exist: " + fieldName);
+     return null;
+   }
+ }
+
+  public static boolean preferenceCreated(ConnectionProvider connectionProvider)    throws ServletException {
+    String strSql = "";
+    strSql = strSql + 
+      "        SELECT count(*) as exist " +
+      "        FROM DUAL " +
+      "        WHERE EXISTS ( " +
+      "          select 1 as num " +
+      "          from ad_preference " +
+      "          where property='OBMOBC_NotAutoLoadIncrementalAtLogin' " +
+      "          and ad_module_id is null" +
+      "        )";
+
+    ResultSet result;
+    boolean boolReturn = false;
+    PreparedStatement st = null;
+
+    try {
+    st = connectionProvider.getPreparedStatement(strSql);
+
+      result = st.executeQuery();
+      if(result.next()) {
+        boolReturn = !UtilSql.getValue(result, "exist").equals("0");
+      }
+      result.close();
+    } catch(SQLException e){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("SQL error in query: " + strSql, e);
+      } else {
+        log4j.error("SQL error in query: " + strSql + " :" + e);
+      }
+      throw new ServletException("@CODE=" + Integer.toString(e.getErrorCode()) + "@" + e.getMessage());
+    } catch(Exception ex){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("Exception in query: " + strSql, ex);
+      } else {
+        log4j.error("Exception in query: " + strSql + " :" + ex);
+      }
+      throw new ServletException("@CODE=@" + ex.getMessage());
+    } finally {
+      try {
+        connectionProvider.releasePreparedStatement(st);
+      } catch(Exception e){
+        log4j.error("Error during release*Statement of query: " + strSql, e);
+      }
+    }
+    return(boolReturn);
+  }
+
+  public static int createPreference(ConnectionProvider connectionProvider)    throws ServletException {
+    String strSql = "";
+    strSql = strSql + 
+      "           INSERT INTO ad_preference (" +
+      "           ad_preference_id, ad_client_id, ad_org_id, isactive," +
+      "           createdby, created, updatedby, updated, property, value, selected, ispropertylist" +
+      "           ) VALUES (" +
+      "           get_uuid(), '0', '0', 'Y', '0', NOW(), '0', NOW(),'OBMOBC_NotAutoLoadIncrementalAtLogin', 'N', 'Y', 'Y')";
+
+    int updateCount = 0;
+    PreparedStatement st = null;
+
+    try {
+    st = connectionProvider.getPreparedStatement(strSql);
+
+      SessionInfo.saveContextInfoIntoDB(connectionProvider.getConnection());
+      updateCount = st.executeUpdate();
+    } catch(SQLException e){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("SQL error in query: " + strSql, e);
+      } else {
+        log4j.error("SQL error in query: " + strSql + " :" + e);
+      }
+      throw new ServletException("@CODE=" + Integer.toString(e.getErrorCode()) + "@" + e.getMessage());
+    } catch(Exception ex){
+      if (log4j.isDebugEnabled()) {
+        log4j.error("Exception in query: " + strSql, ex);
+      } else {
+        log4j.error("Exception in query: " + strSql + " :" + ex);
+      }
+      throw new ServletException("@CODE=@" + ex.getMessage());
+    } finally {
+      try {
+        connectionProvider.releasePreparedStatement(st);
+      } catch(Exception e){
+        log4j.error("Error during release*Statement of query: " + strSql, e);
+      }
+    }
+    return(updateCount);
+  }
+}
diff -r f93d312ddd2f web/org.openbravo.mobile.core/source/data/ob-dal.js
--- a/web/org.openbravo.mobile.core/source/data/ob-dal.js	Fri Aug 30 14:39:38 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-dal.js	Fri Aug 30 14:45:25 2019 +0200
@@ -1539,7 +1539,7 @@
    *
    *
    */
-  OB.Dal.loadModels = function (online, models, data, incremental, callback) {
+  OB.Dal.loadModels = function (online, models, data, incremental, callback, background) {
     var timestamp = 0;
     var key;
 
@@ -1576,6 +1576,7 @@
         // We can safely set the POSLastIncRefresh timestamp now.
         OB.UTIL.localStorage.setItem('POSLastIncRefresh', new Date().getTime());
         dalLoadModelsCallback();
+        return;
       }
       if (
       OB.MobileApp.model.get('modelsToLoad').length === 0 && OB.UTIL.queueStatus(models._LoadQueue || {})) {
@@ -1728,23 +1729,27 @@
                     }
                   }
                   };
-              OB.Data.localDB.transaction(
+              if (incremental) {
+                finishTransaction();
+              } else {
+                OB.Data.localDB.transaction(
 
-              function (tx) {
-                tx.executeSql('select count(1) as totalRecords from ' + item.prototype.tableName, [], function (tx, result) {
-                  logMsgForTransaction(
-                  true, item.prototype.modelName, result.rows.item(0).totalRecords);
-                  checkRecordsWithBackend(
-                  item.prototype.modelName, result.rows.item(0).totalRecords);
+                function (tx) {
+                  tx.executeSql('select count(1) as totalRecords from ' + item.prototype.tableName, [], function (tx, result) {
+                    logMsgForTransaction(
+                    true, item.prototype.modelName, result.rows.item(0).totalRecords);
+                    checkRecordsWithBackend(
+                    item.prototype.modelName, result.rows.item(0).totalRecords);
+                  }, function () {
+                    logMsgForTransaction(false, item.prototype.modelName);
+                  });
+                }, function (errorMsg) {
+                  OB.error(errorMsg);
+                  finishTransaction();
                 }, function () {
-                  logMsgForTransaction(false, item.prototype.modelName);
+                  finishTransaction();
                 });
-              }, function (errorMsg) {
-                OB.error(errorMsg);
-                finishTransaction();
-              }, function () {
-                finishTransaction();
-              });
+              }
             }
 
             // Skip load of models if it's a incremental refresh and the request timeout has been reached
@@ -1760,7 +1765,7 @@
             item.params.terminalTime = currentDate;
             item.params.terminalTimeOffset = currentDate.getTimezoneOffset();
           }
-          ds.load(item.params, incremental);
+          ds.load(item.params, incremental, background);
         }
       } else if (
       item && item.prototype.remote && OB.MobileApp.model.hasPermission(item.prototype.remote, true)) {
diff -r f93d312ddd2f web/org.openbravo.mobile.core/source/data/ob-datasource.js
--- a/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Fri Aug 30 14:39:38 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Fri Aug 30 14:45:25 2019 +0200
@@ -20,6 +20,8 @@
     OB.DS.requestAllowed = isAllowed;
   };
 
+  OB.DS.masterdataBackgroundModels = {}; // To store the models loaded in the masterdata refresh done in background
+
   function serviceSuccess(inSender, inResponse, callback, tx, requestCallback) {
     if (inResponse._entityname) {
       callback([inResponse]);
@@ -525,9 +527,8 @@
   };
   _.extend(OB.DS.DataSource.prototype, Backbone.Events);
 
-  OB.DS.DataSource.prototype.load = function (params, incremental) {
+  OB.DS.DataSource.prototype.load = function (params, incremental, background) {
     this.modelPagination = 1;
-    OB.info('[sdreresh-' + (incremental ? 'inc' : 'full') + '] The model ' + this.request.model.prototype.modelName + ' has started masterdata load');
     var me = this,
         handleError, handleIncrementalRequest, dataLoaded = 0;
     OB.UTIL.localStorage.setItem('recordsFromBackendFor' + me.request.model.prototype.modelName, 0);
@@ -537,16 +538,29 @@
 
       me.trigger('ready', 'failed');
     };
-    handleIncrementalRequest = function (
-    limit, offset, params, incremental, lastId) {
-      params = params || {};
-      params._limit = limit;
-      params._offset = offset;
-      params._count = OB.UTIL.localStorage.getItem('recordsFromBackendFor' + me.request.model.prototype.modelName) ? parseInt(
-      OB.UTIL.localStorage.getItem('recordsFromBackendFor' + me.request.model.prototype.modelName), 10) : 0;
-      params._isMasterdata = true;
-      params.overrideDefaultTimeout = true;
-      params.lastId = lastId;
+
+    const updateModelLastUpdatedTimestamp = function (
+    lastUpdated, data, totalRows) {
+      if (lastUpdated && data.length > 0) {
+        if (
+        OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) && OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) !== 'null') {
+          OB.UTIL.localStorage.setItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName, OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName));
+        } else {
+          OB.error('[lastUpdatedTimestamp] ' + 'local storage (lastUpdatedTimestamp' + me.request.model.prototype.modelName + ') attempted to be set as null. Ignored. Current Value: ' + OB.UTIL.localStorage.getItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName));
+        }
+        OB.UTIL.localStorage.removeItem('requestTimestamp' + me.request.model.prototype.modelName);
+        OB.UTIL.localStorage.setItem('recordsFromBackendFor' + me.request.model.prototype.modelName, totalRows);
+      } else {
+        if (
+        OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) && OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) !== 'null') {
+          OB.UTIL.localStorage.setItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName, OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName));
+        }
+      }
+    };
+
+    const doModelRequest = function (params, functionSave, errorCallback) {
+      var offset = params._offset;
+      var limit = params._limit;
       if (offset === 0) {
         OB.UTIL.localStorage.setItem('requestTimestamp' + me.request.model.prototype.modelName, new Date().getTime());
         OB.UTIL.showLoadingMessage(
@@ -557,6 +571,10 @@
         OB.I18N.getLabel('OBMOBC_LoadingMessageModelPage', [
         me.request.model.prototype.modelName, offset / limit + 1]));
       }
+      delete params._data;
+      delete params._model;
+      delete params._lastUpdated;
+      delete params._totalRows;
       me.request.exec(
       params, function (data, message, lastUpdated, totalRows) {
         var newLastId;
@@ -574,49 +592,37 @@
             OB.UTIL.localStorage.removeItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName);
             OB.UTIL.localStorage.setItem('recordsFromBackendFor' + me.request.model.prototype.modelName, totalRows);
             handleIncrementalRequest(
-            limit, offset + limit, params, incremental, newLastId);
+            limit, offset + limit, params, incremental, newLastId, background);
           } else {
             OB.UTIL.completeLoadingStep();
             OB.debug('[sdreresh-' + (incremental ? 'inc' : 'full') + '] The model ' + me.request.model.prototype.modelName + ' has loaded from ' + offset + ' to ' + (offset + limit + 1) + ' with a ' + data.length + ' records in the pagination ' + me.modelPagination);
-            OB.info('[sdreresh-' + (incremental ? 'inc' : 'full') + '] The model ' + me.request.model.prototype.modelName + ' has finished loading with a total of ' + dataLoaded + ' records. ' + (me.modelPagination === 1 ? 'There was no pagination.' : 'The number of paginations created were ' + me.modelPagination));
-            if (lastUpdated && data.length > 0) {
-              if (
-              OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) && OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) !== 'null') {
-                OB.UTIL.localStorage.setItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName, OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName));
-              } else {
-                OB.error('[lastUpdatedTimestamp] ' + 'local storage (lastUpdatedTimestamp' + me.request.model.prototype.modelName + ') attempted to be set as null. Ignored. Current Value: ' + OB.UTIL.localStorage.getItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName));
-              }
-              OB.UTIL.localStorage.removeItem('requestTimestamp' + me.request.model.prototype.modelName);
-              OB.UTIL.localStorage.setItem('recordsFromBackendFor' + me.request.model.prototype.modelName, totalRows);
-            } else {
-              if (
-              OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) && OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName) !== 'null') {
-                OB.UTIL.localStorage.setItem('lastUpdatedTimestamp' + me.request.model.prototype.modelName, OB.UTIL.localStorage.getItem('requestTimestamp' + me.request.model.prototype.modelName));
-              }
+            if (dataLoaded > 0) {
+              OB.info('[sdreresh-' + (incremental ? 'inc' : 'full') + '] The model ' + me.request.model.prototype.modelName + ' has finished loading with a total of ' + dataLoaded + ' records. ' + (me.modelPagination === 1 ? 'There was no pagination.' : 'The number of paginations created were ' + me.modelPagination));
             }
+
+            if (background === undefined) {
+              updateModelLastUpdatedTimestamp(lastUpdated, data, totalRows);
+            }
+
             me.trigger('ready');
           }
         }
 
         if (data.exception) {
           OB.error('Error in datasource: ' + data.exception);
+          OB.DS.masterdataBackgroundModels = {};
           me.trigger('ready', 'failed');
           return;
         }
         if (me.request.model && me.request.model.prototype.online) {
           me.cache = me.cache ? me.cache.concat(data) : data;
         }
-        if (me.request.model && !me.request.model.prototype.online) {
-          if (offset === 0) {
-            OB.Dal.initCache(
-            me.request.model, data, success, handleError, incremental);
-          } else {
-            OB.Dal.insertData(
-            me.request.model, data, success, handleError, incremental, dataLoaded);
-          }
-        } else {
-          success();
-        }
+
+        params._data = data;
+        params._model = me.request.model;
+        params._lastUpdated = lastUpdated;
+        params._totalRows = totalRows;
+        functionSave(params, success, errorCallback);
       }, function (data) {
         OB.UTIL.Debug.execute(function () {
           if (data && data.exception && data.exception.message) {
@@ -624,6 +630,10 @@
             return;
           }
         });
+        OB.DS.masterdataBackgroundModels = {};
+
+        OB.info(OB.I18N.getLabel('OBMOBC_MasterdataRequestError'));
+        OB.UTIL.showI18NWarning('OBMOBC_MasterdataRequestError');
         if (
         data && data.exception && data.exception.message && data.exception.message === 'Application server is not available.') {
           me.trigger('ready', 'timeout');
@@ -635,11 +645,112 @@
       me.request.source).getServiceTimeout(5000) * 20);
     };
 
+    const doModelDataSave = function (params, success, handleError) {
+      const offset = params._offset;
+      const data = params._data;
+      const model = params._model;
+      if (model && !model.prototype.online) {
+        if (offset === 0) {
+          OB.Dal.initCache(model, data, success, handleError, incremental);
+        } else {
+          OB.Dal.insertData(
+          model, data, success, handleError, incremental, dataLoaded);
+        }
+      } else {
+        success();
+      }
+    };
+
+    const doModelDataSaveInRAM = function (params, success, handleError) {
+      const data = params._data;
+      const limit = params._limit;
+      const currentLength = data.length;
+      const backgroundLimit = OB.MobileApp.model.hasPermission('OBMOBC_BackgroundMasterdataMaxSize', true) ? OB.MobileApp.model.hasPermission('OBMOBC_BackgroundMasterdataMaxSize', true) : limit;
+      if (
+      OB.DS.masterdataBackgroundModels['totalLength'] + currentLength > backgroundLimit) {
+        OB.info('Failed to do masterdata refresh in background because exceeds the limit of data. Trying normal refresh.');
+        OB.UTIL.localStorage.setItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.refreshMasterDataForeground();
+        OB.DS.masterdataBackgroundModels = {};
+        return;
+      }
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty(me.request.source)) {
+        OB.DS.masterdataBackgroundModels[me.request.source] = {};
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [];
+      }
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [...OB.DS.masterdataBackgroundModels[me.request.source]['data'], ...params._data];
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['model'] = params._model;
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] = params._lastUpdated;
+      OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'] = params._totalRows;
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] = me.request.lastUpdated;
+
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty('totalLength')) {
+        OB.DS.masterdataBackgroundModels['totalLength'] = 0;
+      }
+      OB.DS.masterdataBackgroundModels['totalLength'] += currentLength;
+      success();
+    };
+
+    const doModelReadFromRAM = function (params, functionSave, errorCallback) {
+      if (
+      OB.DS.masterdataBackgroundModels[me.request.source]['data'].length === 0) {
+        me.trigger('ready');
+        return;
+      }
+      let parameters = {};
+      parameters._data = OB.DS.masterdataBackgroundModels[me.request.source]['data'];
+      parameters._model = OB.DS.masterdataBackgroundModels[me.request.source]['model'];
+      const lastUpdated_ = OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'];
+      const totalRows = OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'];
+      parameters._offset = 0; // in background all the pages are concatenated into one
+      const success = function () {
+        OB.info('[sdreresh-' + (incremental ? 'inc' : 'full') + '] The model ' + me.request.model.prototype.modelName + ' has finished saving in db with a total of ' + parameters._data.length + ' records. ');
+        updateModelLastUpdatedTimestamp(
+        lastUpdated_, parameters._data, totalRows);
+        me.trigger('ready');
+      };
+      functionSave(parameters, success, errorCallback);
+    };
+
+    handleIncrementalRequest = function (
+    limit, offset, params, incremental, lastId, background) {
+      params = params || {};
+      params._limit = limit;
+      params._offset = offset;
+      params._count = OB.UTIL.localStorage.getItem('recordsFromBackendFor' + me.request.model.prototype.modelName) ? parseInt(
+      OB.UTIL.localStorage.getItem('recordsFromBackendFor' + me.request.model.prototype.modelName), 10) : 0;
+      params._isMasterdata = true;
+      params.overrideDefaultTimeout = true;
+      params.lastId = lastId;
+      params.incremental = incremental;
+
+      if (background === undefined) {
+        // foreground
+        doModelRequest(
+        params, function (params, successCallback, errorCallback) {
+          doModelDataSave(params, successCallback, errorCallback);
+        }, handleError);
+      } else if (background === 'background-request') {
+        doModelRequest(
+        params, function (params, successCallback, errorCallback) {
+          doModelDataSaveInRAM(params, successCallback, errorCallback);
+        }, handleError);
+      } else if (background === 'background-save') {
+        doModelReadFromRAM(
+        params, function (params, successCallback, errorCallback) {
+          doModelDataSave(params, successCallback, errorCallback);
+        }, handleError);
+      }
+    };
+
     this.cache = null;
     var lastId = null; // First request don't have lastId
     handleIncrementalRequest(
     OB.MobileApp.model.hasPermission('OBMOBC_MasterdataBatchSize', true) ? OB.DEC.abs(
-    OB.MobileApp.model.hasPermission('OBMOBC_MasterdataBatchSize', true)) : 10000, 0, params, incremental, lastId);
+    OB.MobileApp.model.hasPermission('OBMOBC_MasterdataBatchSize', true)) : 10000, 0, params, incremental, lastId, background);
   };
 
   OB.DS.DataSource.prototype.find = function (filter, callback) {
diff -r f93d312ddd2f web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
--- a/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Fri Aug 30 14:39:38 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Fri Aug 30 14:45:25 2019 +0200
@@ -1817,10 +1817,15 @@
     }
   },
 
-  loadModels: function (windows, incremental, callback) {
+  loadModels: function (windows, incremental, parentCallback, background) {
     var i, j, windowName, windowClass, windowDatasources, datasources = [],
         w, c, path;
 
+    const callback = function () {
+      OB.info('[sdrefresh] Finished loading models ' + (incremental ? 'incrementally' : 'full') + '.' + (background ? ' (' + background + ' )' : ''));
+      parentCallback();
+    };
+
     if (OB.MobileApp.model.get('loggedOffline')) {
       if (callback instanceof Function) {
         callback();
@@ -1835,7 +1840,7 @@
       });
     }
 
-    OB.info('[sdrefresh] Load models ' + (incremental ? 'incrementally' : 'full') + '.');
+    OB.info('[sdrefresh] Load models ' + (incremental ? 'incrementally' : 'full') + '.' + (background ? ' (' + background + ' )' : ''));
 
     for (i = 0; i < windows.length; i++) {
       windowClass = windows[i].windowClass;
@@ -1868,9 +1873,10 @@
 
     _.extend(datasources, Backbone.Events);
 
-    OB.debug('[sdrefresh] window: ' + windowName);
+    OB.debug('[sdrefresh] window: ' + windowName + (background ? '. (' + background + ' )' : ''));
 
-    OB.Dal.loadModels(false, datasources, null, incremental, callback);
+    OB.Dal.loadModels(
+    false, datasources, null, incremental, callback, background);
 
     this.postLoadModels();
   },

diff -r a11153f696db web/org.openbravo.mobile.core/source/data/ob-datasource.js
--- a/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Fri Aug 30 15:02:49 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Fri Aug 30 15:03:44 2019 +0200
@@ -632,7 +632,8 @@
         });
         OB.DS.masterdataBackgroundModels = {};
 
-        OB.info(OB.I18N.getLabel('OBMOBC_MasterdataRequestError'));
+        OB.info(
+        OB.I18N.getLabel('OBMOBC_MasterdataRequestError') + '. URL which failed: ' + me.request.source);
         OB.UTIL.showI18NWarning('OBMOBC_MasterdataRequestError');
         if (
         data && data.exception && data.exception.message && data.exception.message === 'Application server is not available.') {

diff -r 3e498aa25675 web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js
--- a/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Fri Aug 30 14:58:19 2019 +0200
+++ b/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Fri Aug 30 14:59:03 2019 +0200
@@ -11,6 +11,9 @@
 
 OB.UTIL = window.OB.UTIL || {};
 
+OB.UTIL.masterdataRefreshStatus = '';
+OB.UTIL.backgroundMasterdataRefreshEnabled;
+
 OB.UTIL.sendLastTerminalStatusValues = function (callback) {
   var process = new OB.DS.Process('org.openbravo.retail.posterminal.process.LastTerminalStatusTimestamps');
   process.exec({
@@ -559,10 +562,39 @@
 };
 
 OB.UTIL.checkRefreshMasterData = function () {
+  // this code is called on:
+  // - ticket close
+  // - timeout of force refresh time
+  // - window navigation
   if (
   OB.MobileApp.model.get('refreshMasterdata') === true && OB.UTIL.refreshMasterDataGetProperty('allowedIncrementalRefresh')) {
-    OB.UTIL.clearFlagAndTimersRefreshMasterData();
-    OB.UTIL.refreshMasterData();
+    if (
+    OB.UTIL.backgroundMasterdataIsEnabled() && !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')) {
+      // background
+      // this is the save, the request was called in OB.UTIL.loadModelsIncFunc
+      if (OB.UTIL.masterdataRefreshStatus !== 'background-request-finished') {
+        OB.info("Cannot start masterdata save because the espected status was 'background-request-finished', but it was: " + OB.UTIL.masterdataRefreshStatus);
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        if (OB.DS.masterdataBackgroundModels.totalLength > 0) {
+          OB.UTIL.refreshMasterDataInBackgroundSave();
+        } else {
+          OB.info('No updates in the masterdata.');
+        }
+      }
+    } else {
+      // foreground
+      if (OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')) {
+        OB.info('Detected that previous masterdata refresh in background has fail because execeeds the limit of data. Trying normal refresh.');
+      }
+      if (
+      OB.UTIL.masterdataRefreshStatus !== '' && OB.UTIL.masterdataRefreshStatus !== 'background-request-finished') {
+        OB.info("Cannot start masterdata refresh in foreground because the espected status was '' or 'background-request-finished', but it was: " + OB.UTIL.masterdataRefreshStatus);
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        OB.UTIL.refreshMasterDataForeground();
+      }
+    }
   }
 };
 
@@ -572,12 +604,49 @@
     OB.UTIL.checkRefreshMasterData();
   }
 };
-OB.UTIL.refreshMasterData = function () {
+
+OB.UTIL.refreshMasterDataInBackgroundRequest = function () {
+  if (
+  OB.UTIL.masterdataRefreshStatus !== '' && OB.UTIL.masterdataRefreshStatus !== 'background-request-finished') {
+    OB.info('Cannot start the masterdata requests because the expected status was "" or "background-request-finished" but it was: ' + OB.UTIL.masterdataRefreshStatus);
+    return;
+  }
+  OB.UTIL.masterdataRefreshStatus = 'background-request-started';
+  OB.DS.masterdataBackgroundModels = {};
+  OB.MobileApp.model.loadModels(
+  null, true, function () {
+    OB.UTIL.masterdataRefreshStatus = 'background-request-finished';
+  }, 'background-request');
+};
+
+OB.UTIL.refreshMasterDataInBackgroundSave = function () {
+  OB.UTIL.masterdataRefreshStatus = 'background-save-started';
+  if (OB.UTIL.RfidController.isRfidConfigured()) {
+    OB.UTIL.RfidController.disconnectRFIDDevice();
+  }
+  OB.UTIL.startLoadingSteps();
+  OB.MobileApp.model.set('isLoggingIn', true);
+  OB.UTIL.showLoading(true);
+  OB.MobileApp.model.loadModels(
+  null, true, function () {
+    OB.UTIL.masterdataRefreshStatus = '';
+    OB.DS.masterdataBackgroundModels = {};
+    OB.UTIL.showLoading(false);
+    if (OB.UTIL.RfidController.isRfidConfigured()) {
+      OB.UTIL.RfidController.connectRFIDDevice();
+    }
+    OB.MobileApp.model.set('isLoggingIn', false);
+  }, 'background-save');
+};
+
+OB.UTIL.refreshMasterDataForeground = function () {
+  OB.DS.masterdataBackgroundModels = {};
   OB.MobileApp.model.set('secondsToRefreshMasterdata', 3);
   var counterIntervalId = null;
   counterIntervalId = setInterval(function () {
     OB.MobileApp.model.set('secondsToRefreshMasterdata', OB.MobileApp.model.get('secondsToRefreshMasterdata') - 1);
     if (OB.MobileApp.model.get('secondsToRefreshMasterdata') === 0) {
+      OB.UTIL.masterdataRefreshStatus = 'foreground-started';
       OB.MobileApp.model.set('refreshMasterdataShowPopup', false);
       clearInterval(counterIntervalId);
       if (OB.UTIL.RfidController.isRfidConfigured()) {
@@ -592,6 +661,8 @@
           OB.UTIL.RfidController.connectRFIDDevice();
         }
         OB.MobileApp.model.set('isLoggingIn', false);
+        OB.UTIL.localStorage.removeItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.masterdataRefreshStatus = '';
       });
     }
   }, 1000);
@@ -656,8 +727,13 @@
     OB.info(msg);
     OB.UTIL.showWarning(msg);
   }
+  if (
+  OB.UTIL.backgroundMasterdataIsEnabled() && !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')) {
+    OB.UTIL.refreshMasterDataInBackgroundRequest();
+  }
   OB.MobileApp.model.set('refreshMasterdata', true);
   if (!OB.UTIL.isNullOrUndefined(minShowIncRefresh) && minShowIncRefresh >= 0) {
+    // Forced refresh by timeout, ticket close also calls to checkRefreshMasterData
     var noActivityTimeout = OB.MobileApp.model.get('refreshMasterdataNoActivityTimeout');
     if (OB.UTIL.isNullOrUndefined(noActivityTimeout)) {
       OB.MobileApp.model.set('refreshMasterdataNoActivityTimeout', true);
@@ -670,6 +746,21 @@
   }
 };
 
+OB.UTIL.backgroundMasterdataIsEnabled = function () {
+  if (OB.UTIL.backgroundMasterdataRefreshEnabled === undefined) {
+    let preferenceValue = OB.MobileApp.model.hasPermission('OBMOBC_BackgroundMasterdataMaxSize', true);
+    if (!preferenceValue || (preferenceValue && !isNaN(preferenceValue) && preferenceValue >= 1)) {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = true;
+    } else {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = false;
+      if (isNaN(preferenceValue)) {
+        OB.warn('OBMOBC_BackgroundMasterdataMaxSize has a value not numeric: ' + preferenceValue);
+      }
+    }
+  }
+  return OB.UTIL.backgroundMasterdataRefreshEnabled;
+};
+
 OB.UTIL.getCalculatedPriceForService = function (
 line, product, relatedLines, serviceLineQty, callback, errorCallback) {
   var amountBeforeDiscounts = 0,

diff -r 0998deaab73b src-db/database/sourcedata/AD_MESSAGE.xml
--- a/src-db/database/sourcedata/AD_MESSAGE.xml	Thu Sep 05 07:49:00 2019 +0200
+++ b/src-db/database/sourcedata/AD_MESSAGE.xml	Fri Sep 06 11:40:56 2019 +0200
@@ -1936,6 +1936,18 @@
 <!--C4E1B578B13840ADA3BC8092798E743A-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
 <!--C4E1B578B13840ADA3BC8092798E743A--></AD_MESSAGE>
 
+<!--C768AEA530B44845ACBDA07AA15CF291--><AD_MESSAGE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MESSAGE_ID><![CDATA[C768AEA530B44845ACBDA07AA15CF291]]></AD_MESSAGE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <VALUE><![CDATA[OBMOBC_MasterdataRequestError]]></VALUE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTEXT><![CDATA[There was an error in the masterdata requests, aborted current refresh]]></MSGTEXT>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <MSGTYPE><![CDATA[W]]></MSGTYPE>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--C768AEA530B44845ACBDA07AA15CF291-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
+<!--C768AEA530B44845ACBDA07AA15CF291--></AD_MESSAGE>
+
 <!--C88B6F2C58B3477BAEA816BF54559E50--><AD_MESSAGE>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_MESSAGE_ID><![CDATA[C88B6F2C58B3477BAEA816BF54559E50]]></AD_MESSAGE_ID>
 <!--C88B6F2C58B3477BAEA816BF54559E50-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r 0998deaab73b src-db/database/sourcedata/AD_PREFERENCE.xml
--- a/src-db/database/sourcedata/AD_PREFERENCE.xml	Thu Sep 05 07:49:00 2019 +0200
+++ b/src-db/database/sourcedata/AD_PREFERENCE.xml	Fri Sep 06 11:40:56 2019 +0200
@@ -22,6 +22,17 @@
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
 <!--01EAFAD3A2204971A35D18E8CEBE9F8C--></AD_PREFERENCE>
 
+<!--0280B1B0ED464B34924688C1C678A52A--><AD_PREFERENCE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_PREFERENCE_ID><![CDATA[0280B1B0ED464B34924688C1C678A52A]]></AD_PREFERENCE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <VALUE><![CDATA[Y]]></VALUE>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <PROPERTY><![CDATA[OBMOBC_NotAutoLoadIncrementalAtLogin]]></PROPERTY>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <ISPROPERTYLIST><![CDATA[Y]]></ISPROPERTYLIST>
+<!--0280B1B0ED464B34924688C1C678A52A-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--0280B1B0ED464B34924688C1C678A52A--></AD_PREFERENCE>
+
 <!--18639B6C06B44324A65D199CD8A32440--><AD_PREFERENCE>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_PREFERENCE_ID><![CDATA[18639B6C06B44324A65D199CD8A32440]]></AD_PREFERENCE_ID>
 <!--18639B6C06B44324A65D199CD8A32440-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r 0998deaab73b src-db/database/sourcedata/AD_REF_LIST.xml
--- a/src-db/database/sourcedata/AD_REF_LIST.xml	Thu Sep 05 07:49:00 2019 +0200
+++ b/src-db/database/sourcedata/AD_REF_LIST.xml	Fri Sep 06 11:40:56 2019 +0200
@@ -366,6 +366,18 @@
 <!--685D743ABF804EFBB48B9E7D4C253E02-->  <SEQNO><![CDATA[40]]></SEQNO>
 <!--685D743ABF804EFBB48B9E7D4C253E02--></AD_REF_LIST>
 
+<!--6E6E9B37800B4F50AAAD606330E887C3--><AD_REF_LIST>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REF_LIST_ID><![CDATA[6E6E9B37800B4F50AAAD606330E887C3]]></AD_REF_LIST_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <VALUE><![CDATA[OBMOBC_BackgroundMasterdataMaxSize]]></VALUE>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <NAME><![CDATA[Background Masterdata Maximum Size]]></NAME>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <DESCRIPTION><![CDATA[Maximum size for all models for incremental masterdata refresh in background. Value -1 disable the background refresh of the masterdata]]></DESCRIPTION>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_REFERENCE_ID><![CDATA[A26BA480E2014707B47257024C3CBFF7]]></AD_REFERENCE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3-->  <AD_MODULE_ID><![CDATA[08943B85ADF64E708797A753E5B6AAEE]]></AD_MODULE_ID>
+<!--6E6E9B37800B4F50AAAD606330E887C3--></AD_REF_LIST>
+
 <!--73967117B13C4B5EAEA505E04A7E80A3--><AD_REF_LIST>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_REF_LIST_ID><![CDATA[73967117B13C4B5EAEA505E04A7E80A3]]></AD_REF_LIST_ID>
 <!--73967117B13C4B5EAEA505E04A7E80A3-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff -r 0998deaab73b web/org.openbravo.mobile.core/source/data/ob-dal.js
--- a/web/org.openbravo.mobile.core/source/data/ob-dal.js	Thu Sep 05 07:49:00 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-dal.js	Fri Sep 06 11:40:56 2019 +0200
@@ -2196,7 +2196,14 @@
    *
    *
    */
-  OB.Dal.loadModels = function(online, models, data, incremental, callback) {
+  OB.Dal.loadModels = function(
+    online,
+    models,
+    data,
+    incremental,
+    callback,
+    background
+  ) {
     var timestamp = 0;
     var key;
 
@@ -2241,6 +2248,7 @@
         // We can safely set the POSLastIncRefresh timestamp now.
         OB.UTIL.localStorage.setItem('POSLastIncRefresh', new Date().getTime());
         dalLoadModelsCallback();
+        return;
       }
       if (
         OB.MobileApp.model.get('modelsToLoad').length === 0 &&
@@ -2468,36 +2476,40 @@
                   }
                 }
               };
-              OB.Data.localDB.transaction(
-                function(tx) {
-                  tx.executeSql(
-                    'select count(1) as totalRecords from ' +
-                      item.prototype.tableName,
-                    [],
-                    function(tx, result) {
-                      logMsgForTransaction(
-                        true,
-                        item.prototype.modelName,
-                        result.rows.item(0).totalRecords
-                      );
-                      checkRecordsWithBackend(
-                        item.prototype.modelName,
-                        result.rows.item(0).totalRecords
-                      );
-                    },
-                    function() {
-                      logMsgForTransaction(false, item.prototype.modelName);
-                    }
-                  );
-                },
-                function(errorMsg) {
-                  OB.error(errorMsg);
-                  finishTransaction();
-                },
-                function() {
-                  finishTransaction();
-                }
-              );
+              if (incremental) {
+                finishTransaction();
+              } else {
+                OB.Data.localDB.transaction(
+                  function(tx) {
+                    tx.executeSql(
+                      'select count(1) as totalRecords from ' +
+                        item.prototype.tableName,
+                      [],
+                      function(tx, result) {
+                        logMsgForTransaction(
+                          true,
+                          item.prototype.modelName,
+                          result.rows.item(0).totalRecords
+                        );
+                        checkRecordsWithBackend(
+                          item.prototype.modelName,
+                          result.rows.item(0).totalRecords
+                        );
+                      },
+                      function() {
+                        logMsgForTransaction(false, item.prototype.modelName);
+                      }
+                    );
+                  },
+                  function(errorMsg) {
+                    OB.error(errorMsg);
+                    finishTransaction();
+                  },
+                  function() {
+                    finishTransaction();
+                  }
+                );
+              }
             }
 
             // Skip load of models if it's a incremental refresh and the request timeout has been reached
@@ -2513,7 +2525,7 @@
             item.params.terminalTime = currentDate;
             item.params.terminalTimeOffset = currentDate.getTimezoneOffset();
           }
-          ds.load(item.params, incremental);
+          ds.load(item.params, incremental, background);
         }
       } else if (
         item &&
diff -r 0998deaab73b web/org.openbravo.mobile.core/source/data/ob-datasource.js
--- a/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Thu Sep 05 07:49:00 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/data/ob-datasource.js	Fri Sep 06 11:40:56 2019 +0200
@@ -20,6 +20,8 @@
     OB.DS.requestAllowed = isAllowed;
   };
 
+  OB.DS.masterdataBackgroundModels = {}; // To store the models loaded in the masterdata refresh done in background
+  
   function serviceSuccess(inSender, inResponse, callback, tx, requestCallback) {
     if (inResponse._entityname) {
       callback([inResponse]);
@@ -617,15 +619,8 @@
   };
   _.extend(OB.DS.DataSource.prototype, Backbone.Events);
 
-  OB.DS.DataSource.prototype.load = function(params, incremental) {
+  OB.DS.DataSource.prototype.load = function(params, incremental, background) {
     this.modelPagination = 1;
-    OB.info(
-      '[sdreresh-' +
-        (incremental ? 'inc' : 'full') +
-        '] The model ' +
-        this.request.model.prototype.modelName +
-        ' has started masterdata load'
-    );
     var me = this,
       handleError,
       handleIncrementalRequest,
@@ -645,29 +640,67 @@
 
       me.trigger('ready', 'failed');
     };
-    handleIncrementalRequest = function(
-      limit,
-      offset,
-      params,
-      incremental,
-      lastId
+
+    const updateModelLastUpdatedTimestamp = function(
+      lastUpdated,
+      data,
+      totalRows
     ) {
-      params = params || {};
-      params._limit = limit;
-      params._offset = offset;
-      params._count = OB.UTIL.localStorage.getItem(
-        'recordsFromBackendFor' + me.request.model.prototype.modelName
-      )
-        ? parseInt(
+      if (lastUpdated && data.length > 0) {
+        if (
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) &&
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) !== 'null'
+        ) {
+          OB.UTIL.localStorage.setItem(
+            'lastUpdatedTimestamp' + me.request.model.prototype.modelName,
             OB.UTIL.localStorage.getItem(
-              'recordsFromBackendFor' + me.request.model.prototype.modelName
-            ),
-            10
-          )
-        : 0;
-      params._isMasterdata = true;
-      params.overrideDefaultTimeout = true;
-      params.lastId = lastId;
+              'requestTimestamp' + me.request.model.prototype.modelName
+            )
+          );
+        } else {
+          OB.error(
+            '[lastUpdatedTimestamp] ' +
+              'local storage (lastUpdatedTimestamp' +
+              me.request.model.prototype.modelName +
+              ') attempted to be set as null. Ignored. Current Value: ' +
+              OB.UTIL.localStorage.getItem(
+                'lastUpdatedTimestamp' + me.request.model.prototype.modelName
+              )
+          );
+        }
+        OB.UTIL.localStorage.removeItem(
+          'requestTimestamp' + me.request.model.prototype.modelName
+        );
+        OB.UTIL.localStorage.setItem(
+          'recordsFromBackendFor' + me.request.model.prototype.modelName,
+          totalRows
+        );
+      } else {
+        if (
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) &&
+          OB.UTIL.localStorage.getItem(
+            'requestTimestamp' + me.request.model.prototype.modelName
+          ) !== 'null'
+        ) {
+          OB.UTIL.localStorage.setItem(
+            'lastUpdatedTimestamp' + me.request.model.prototype.modelName,
+            OB.UTIL.localStorage.getItem(
+              'requestTimestamp' + me.request.model.prototype.modelName
+            )
+          );
+        }
+      }
+    };
+
+    const doModelRequest = function(params, functionSave, errorCallback) {
+      var offset = params._offset;
+      var limit = params._limit;
       if (offset === 0) {
         OB.UTIL.localStorage.setItem(
           'requestTimestamp' + me.request.model.prototype.modelName,
@@ -686,6 +719,10 @@
           ])
         );
       }
+      delete params._data;
+      delete params._model;
+      delete params._lastUpdated;
+      delete params._totalRows;
       me.request.exec(
         params,
         function(data, message, lastUpdated, totalRows) {
@@ -727,7 +764,8 @@
                 offset + limit,
                 params,
                 incremental,
-                newLastId
+                newLastId,
+                background
               );
             } else {
               OB.UTIL.completeLoadingStep();
@@ -745,106 +783,44 @@
                   ' records in the pagination ' +
                   me.modelPagination
               );
-              OB.info(
-                '[sdreresh-' +
-                  (incremental ? 'inc' : 'full') +
-                  '] The model ' +
-                  me.request.model.prototype.modelName +
-                  ' has finished loading with a total of ' +
-                  dataLoaded +
-                  ' records. ' +
-                  (me.modelPagination === 1
-                    ? 'There was no pagination.'
-                    : 'The number of paginations created were ' +
-                      me.modelPagination)
-              );
-              if (lastUpdated && data.length > 0) {
-                if (
-                  OB.UTIL.localStorage.getItem(
-                    'requestTimestamp' + me.request.model.prototype.modelName
-                  ) &&
-                  OB.UTIL.localStorage.getItem(
-                    'requestTimestamp' + me.request.model.prototype.modelName
-                  ) !== 'null'
-                ) {
-                  OB.UTIL.localStorage.setItem(
-                    'lastUpdatedTimestamp' +
-                      me.request.model.prototype.modelName,
-                    OB.UTIL.localStorage.getItem(
-                      'requestTimestamp' + me.request.model.prototype.modelName
-                    )
-                  );
-                } else {
-                  OB.error(
-                    '[lastUpdatedTimestamp] ' +
-                      'local storage (lastUpdatedTimestamp' +
-                      me.request.model.prototype.modelName +
-                      ') attempted to be set as null. Ignored. Current Value: ' +
-                      OB.UTIL.localStorage.getItem(
-                        'lastUpdatedTimestamp' +
-                          me.request.model.prototype.modelName
-                      )
-                  );
-                }
-                OB.UTIL.localStorage.removeItem(
-                  'requestTimestamp' + me.request.model.prototype.modelName
+              if (dataLoaded > 0) {
+                OB.info(
+                  '[sdreresh-' +
+                    (incremental ? 'inc' : 'full') +
+                    '] The model ' +
+                    me.request.model.prototype.modelName +
+                    ' has finished loading with a total of ' +
+                    dataLoaded +
+                    ' records. ' +
+                    (me.modelPagination === 1
+                      ? 'There was no pagination.'
+                      : 'The number of paginations created were ' +
+                        me.modelPagination)
                 );
-                OB.UTIL.localStorage.setItem(
-                  'recordsFromBackendFor' +
-                    me.request.model.prototype.modelName,
-                  totalRows
-                );
-              } else {
-                if (
-                  OB.UTIL.localStorage.getItem(
-                    'requestTimestamp' + me.request.model.prototype.modelName
-                  ) &&
-                  OB.UTIL.localStorage.getItem(
-                    'requestTimestamp' + me.request.model.prototype.modelName
-                  ) !== 'null'
-                ) {
-                  OB.UTIL.localStorage.setItem(
-                    'lastUpdatedTimestamp' +
-                      me.request.model.prototype.modelName,
-                    OB.UTIL.localStorage.getItem(
-                      'requestTimestamp' + me.request.model.prototype.modelName
-                    )
-                  );
-                }
               }
+
+              if (background === undefined) {
+                updateModelLastUpdatedTimestamp(lastUpdated, data, totalRows);
+              }
+
               me.trigger('ready');
             }
           }
           if (data.exception) {
             OB.error('Error in datasource: ' + data.exception);
+            OB.DS.masterdataBackgroundModels = {};
             me.trigger('ready', 'failed');
             return;
           }
           if (me.request.model && me.request.model.prototype.online) {
             me.cache = me.cache ? me.cache.concat(data) : data;
           }
-          if (me.request.model && !me.request.model.prototype.online) {
-            if (offset === 0) {
-              OB.Dal.initCache(
-                me.request.model,
-                data,
-                success,
-                handleError,
-                incremental
-              );
-            } else {
-              OB.Dal.insertData(
-                me.request.model,
-                data,
-                success,
-                handleError,
-                incremental,
-                dataLoaded
-              );
-            }
-          } else {
-            success();
-          }
+
+          params._data = data;
+          params._model = me.request.model;
+          params._lastUpdated = lastUpdated;
+          params._totalRows = totalRows;
+          functionSave(params, success, errorCallback);
         },
         function(data) {
           OB.UTIL.Debug.execute(function() {
@@ -855,6 +831,14 @@
               return;
             }
           });
+          OB.DS.masterdataBackgroundModels = {};
+
+          OB.info(
+            OB.I18N.getLabel('OBMOBC_MasterdataRequestError') +
+              '. URL which failed: ' +
+              me.request.source
+          );
+          OB.UTIL.showI18NWarning('OBMOBC_MasterdataRequestError');
           if (
             data &&
             data.exception &&
@@ -877,6 +861,172 @@
       );
     };
 
+    const doModelDataSave = function(params, success, handleError) {
+      const offset = params._offset;
+      const data = params._data;
+      const model = params._model;
+      if (model && !model.prototype.online) {
+        if (offset === 0) {
+          OB.Dal.initCache(model, data, success, handleError, incremental);
+        } else {
+          OB.Dal.insertData(
+            model,
+            data,
+            success,
+            handleError,
+            incremental,
+            dataLoaded
+          );
+        }
+      } else {
+        success();
+      }
+    };
+
+    const doModelDataSaveInRAM = function(params, success, handleError) {
+      const data = params._data;
+      const limit = params._limit;
+      const currentLength = data.length;
+      const backgroundLimit = OB.MobileApp.model.hasPermission(
+        'OBMOBC_BackgroundMasterdataMaxSize',
+        true
+      )
+        ? OB.MobileApp.model.hasPermission(
+            'OBMOBC_BackgroundMasterdataMaxSize',
+            true
+          )
+        : limit;
+      if (
+        OB.DS.masterdataBackgroundModels['totalLength'] + currentLength >
+        backgroundLimit
+      ) {
+        OB.info(
+          'Failed to do masterdata refresh in background because exceeds the limit of data. Trying normal refresh.'
+        );
+        OB.UTIL.localStorage.setItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.refreshMasterDataForeground();
+        OB.DS.masterdataBackgroundModels = {};
+        return;
+      }
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty(me.request.source)) {
+        OB.DS.masterdataBackgroundModels[me.request.source] = {};
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [];
+      }
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['data'] = [
+        ...OB.DS.masterdataBackgroundModels[me.request.source]['data'],
+        ...params._data
+      ];
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['model'] =
+        params._model;
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] =
+        params._lastUpdated;
+      OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'] =
+        params._totalRows;
+
+      OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'] =
+        me.request.lastUpdated;
+
+      if (!OB.DS.masterdataBackgroundModels.hasOwnProperty('totalLength')) {
+        OB.DS.masterdataBackgroundModels['totalLength'] = 0;
+      }
+      OB.DS.masterdataBackgroundModels['totalLength'] += currentLength;
+      success();
+    };
+
+    const doModelReadFromRAM = function(params, functionSave, errorCallback) {
+      if (
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'].length === 0
+      ) {
+        me.trigger('ready');
+        return;
+      }
+      let parameters = {};
+      parameters._data =
+        OB.DS.masterdataBackgroundModels[me.request.source]['data'];
+      parameters._model =
+        OB.DS.masterdataBackgroundModels[me.request.source]['model'];
+      const lastUpdated_ =
+        OB.DS.masterdataBackgroundModels[me.request.source]['lastUpdated'];
+      const totalRows =
+        OB.DS.masterdataBackgroundModels[me.request.source]['totalRows'];
+      parameters._offset = 0; // in background all the pages are concatenated into one
+
+      const success = function() {
+        OB.info(
+          '[sdreresh-' +
+            (incremental ? 'inc' : 'full') +
+            '] The model ' +
+            me.request.model.prototype.modelName +
+            ' has finished saving in db with a total of ' +
+            parameters._data.length +
+            ' records. '
+        );
+        updateModelLastUpdatedTimestamp(
+          lastUpdated_,
+          parameters._data,
+          totalRows
+        );
+        me.trigger('ready');
+      };
+      functionSave(parameters, success, errorCallback);
+    };
+
+    handleIncrementalRequest = function(
+      limit,
+      offset,
+      params,
+      incremental,
+      lastId,
+      background
+    ) {
+      params = params || {};
+      params._limit = limit;
+      params._offset = offset;
+      params._count = OB.UTIL.localStorage.getItem(
+        'recordsFromBackendFor' + me.request.model.prototype.modelName
+      )
+        ? parseInt(
+            OB.UTIL.localStorage.getItem(
+              'recordsFromBackendFor' + me.request.model.prototype.modelName
+            ),
+            10
+          )
+        : 0;
+      params._isMasterdata = true;
+      params.overrideDefaultTimeout = true;
+      params.lastId = lastId;
+      params.incremental = incremental;
+
+      if (background === undefined) {
+        // foreground
+        doModelRequest(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSave(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      } else if (background === 'background-request') {
+        doModelRequest(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSaveInRAM(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      } else if (background === 'background-save') {
+        doModelReadFromRAM(
+          params,
+          function(params, successCallback, errorCallback) {
+            doModelDataSave(params, successCallback, errorCallback);
+          },
+          handleError
+        );
+      }
+    };
+
     this.cache = null;
     var lastId = null; // First request don't have lastId
     handleIncrementalRequest(
@@ -888,7 +1038,8 @@
       0,
       params,
       incremental,
-      lastId
+      lastId,
+      background
     );
   };
 
diff -r 0998deaab73b web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
--- a/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Thu Sep 05 07:49:00 2019 +0200
+++ b/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js	Fri Sep 06 11:40:56 2019 +0200
@@ -2089,7 +2089,7 @@
     OB.UTIL.showLoading(false);
   },
 
-  loadModels: function(windows, incremental, callback) {
+  loadModels: function(windows, incremental, parentCallback, background) {
     var i,
       j,
       windowName,
@@ -2101,6 +2101,16 @@
       c,
       path;
 
+    const callback = function() {
+      OB.info(
+        '[sdrefresh] Finished loading models ' +
+          (incremental ? 'incrementally' : 'full') +
+          '.' +
+          (background ? ' (' + background + ' )' : '')
+      );
+      parentCallback();
+    };
+
     if (OB.MobileApp.model.get('loggedOffline')) {
       if (callback instanceof Function) {
         callback();
@@ -2118,7 +2128,8 @@
     OB.info(
       '[sdrefresh] Load models ' +
         (incremental ? 'incrementally' : 'full') +
-        '.'
+        '.' +
+        (background ? ' (' + background + ' )' : '')
     );
 
     for (i = 0; i < windows.length; i++) {
@@ -2160,9 +2171,20 @@
 
     _.extend(datasources, Backbone.Events);
 
-    OB.debug('[sdrefresh] window: ' + windowName);
+    OB.debug(
+      '[sdrefresh] window: ' +
+        windowName +
+        (background ? '. (' + background + ' )' : '')
+    );
 
-    OB.Dal.loadModels(false, datasources, null, incremental, callback);
+    OB.Dal.loadModels(
+      false,
+      datasources,
+      null,
+      incremental,
+      callback,
+      background
+    );
 
     this.postLoadModels();
   },

diff -r f2a485fa1188 web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js
--- a/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Thu Sep 05 07:35:25 2019 +0200
+++ b/web/org.openbravo.retail.posterminal/js/utils/ob-utilitiesuipos.js	Fri Sep 06 11:46:55 2019 +0200
@@ -11,6 +11,9 @@
 
 OB.UTIL = window.OB.UTIL || {};
 
+OB.UTIL.masterdataRefreshStatus = '';
+OB.UTIL.backgroundMasterdataRefreshEnabled;
+
 OB.UTIL.sendLastTerminalStatusValues = function(callback) {
   var process = new OB.DS.Process(
     'org.openbravo.retail.posterminal.process.LastTerminalStatusTimestamps'
@@ -677,12 +680,53 @@
 };
 
 OB.UTIL.checkRefreshMasterData = function() {
+  // this code is called on:
+  // - ticket close
+  // - timeout of force refresh time
+  // - window navigation
   if (
     OB.MobileApp.model.get('refreshMasterdata') === true &&
     OB.UTIL.refreshMasterDataGetProperty('allowedIncrementalRefresh')
   ) {
-    OB.UTIL.clearFlagAndTimersRefreshMasterData();
-    OB.UTIL.refreshMasterData();
+    if (
+      OB.UTIL.backgroundMasterdataIsEnabled() &&
+      !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')
+    ) {
+      // background
+      // this is the save, the request was called in OB.UTIL.loadModelsIncFunc
+      if (OB.UTIL.masterdataRefreshStatus !== 'background-request-finished') {
+        OB.info(
+          "Cannot start masterdata save because the espected status was 'background-request-finished', but it was: " +
+            OB.UTIL.masterdataRefreshStatus
+        );
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        if (OB.DS.masterdataBackgroundModels.totalLength > 0) {
+          OB.UTIL.refreshMasterDataInBackgroundSave();
+        } else {
+          OB.info('No updates in the masterdata.');
+        }
+      }
+    } else {
+      // foreground
+      if (OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')) {
+        OB.info(
+          'Detected that previous masterdata refresh in background has fail because execeeds the limit of data. Trying normal refresh.'
+        );
+      }
+      if (
+        OB.UTIL.masterdataRefreshStatus !== '' &&
+        OB.UTIL.masterdataRefreshStatus !== 'background-request-finished'
+      ) {
+        OB.info(
+          "Cannot start masterdata refresh in foreground because the espected status was '' or 'background-request-finished', but it was: " +
+            OB.UTIL.masterdataRefreshStatus
+        );
+      } else {
+        OB.UTIL.clearFlagAndTimersRefreshMasterData();
+        OB.UTIL.refreshMasterDataForeground();
+      }
+    }
   }
 };
 
@@ -695,7 +739,56 @@
   }
 };
 
-OB.UTIL.refreshMasterData = function() {
+
+OB.UTIL.refreshMasterDataInBackgroundRequest = function() {
+  if (
+    OB.UTIL.masterdataRefreshStatus !== '' &&
+    OB.UTIL.masterdataRefreshStatus !== 'background-request-finished'
+  ) {
+    OB.info(
+      'Cannot start the masterdata requests because the expected status was "" or "background-request-finished" but it was: ' +
+        OB.UTIL.masterdataRefreshStatus
+    );
+    return;
+  }
+  OB.UTIL.masterdataRefreshStatus = 'background-request-started';
+  OB.DS.masterdataBackgroundModels = {};
+  OB.MobileApp.model.loadModels(
+    null,
+    true,
+    function() {
+      OB.UTIL.masterdataRefreshStatus = 'background-request-finished';
+    },
+    'background-request'
+  );
+};
+
+OB.UTIL.refreshMasterDataInBackgroundSave = function() {
+  OB.UTIL.masterdataRefreshStatus = 'background-save-started';
+  if (OB.UTIL.RfidController.isRfidConfigured()) {
+    OB.UTIL.RfidController.disconnectRFIDDevice();
+  }
+  OB.UTIL.startLoadingSteps();
+  OB.MobileApp.model.set('isLoggingIn', true);
+  OB.UTIL.showLoading(true);
+  OB.MobileApp.model.loadModels(
+    null,
+    true,
+    function() {
+      OB.UTIL.masterdataRefreshStatus = '';
+      OB.DS.masterdataBackgroundModels = {};
+      OB.UTIL.showLoading(false);
+      if (OB.UTIL.RfidController.isRfidConfigured()) {
+        OB.UTIL.RfidController.connectRFIDDevice();
+      }
+      OB.MobileApp.model.set('isLoggingIn', false);
+    },
+    'background-save'
+  );
+};
+
+OB.UTIL.refreshMasterDataForeground = function() {
+  OB.DS.masterdataBackgroundModels = {};
   OB.MobileApp.model.set('secondsToRefreshMasterdata', 3);
   var counterIntervalId = null;
   counterIntervalId = setInterval(function() {
@@ -704,6 +797,7 @@
       OB.MobileApp.model.get('secondsToRefreshMasterdata') - 1
     );
     if (OB.MobileApp.model.get('secondsToRefreshMasterdata') === 0) {
+      OB.UTIL.masterdataRefreshStatus = 'foreground-started';
       OB.MobileApp.model.set('refreshMasterdataShowPopup', false);
       clearInterval(counterIntervalId);
       if (OB.UTIL.RfidController.isRfidConfigured()) {
@@ -718,6 +812,8 @@
           OB.UTIL.RfidController.connectRFIDDevice();
         }
         OB.MobileApp.model.set('isLoggingIn', false);
+        OB.UTIL.localStorage.removeItem('neededForeGroundMasterDataRefresh');
+        OB.UTIL.masterdataRefreshStatus = '';
       });
     }
   }, 1000);
@@ -800,8 +896,15 @@
     OB.info(msg);
     OB.UTIL.showWarning(msg);
   }
+  if (
+    OB.UTIL.backgroundMasterdataIsEnabled() &&
+    !OB.UTIL.localStorage.getItem('neededForeGroundMasterDataRefresh')
+  ) {
+    OB.UTIL.refreshMasterDataInBackgroundRequest();
+  }
   OB.MobileApp.model.set('refreshMasterdata', true);
   if (!OB.UTIL.isNullOrUndefined(minShowIncRefresh) && minShowIncRefresh >= 0) {
+    // Forced refresh by timeout, ticket close also calls to checkRefreshMasterData
     var noActivityTimeout = OB.MobileApp.model.get(
       'refreshMasterdataNoActivityTimeout'
     );
@@ -1164,3 +1267,27 @@
     );
   }
 };
+
+OB.UTIL.backgroundMasterdataIsEnabled = function() {
+  if (OB.UTIL.backgroundMasterdataRefreshEnabled === undefined) {
+    let preferenceValue = OB.MobileApp.model.hasPermission(
+      'OBMOBC_BackgroundMasterdataMaxSize',
+      true
+    );
+    if (
+      !preferenceValue ||
+      (preferenceValue && !isNaN(preferenceValue) && preferenceValue >= 1)
+    ) {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = true;
+    } else {
+      OB.UTIL.backgroundMasterdataRefreshEnabled = false;
+      if (isNaN(preferenceValue)) {
+        OB.warn(
+          'OBMOBC_BackgroundMasterdataMaxSize has a value not numeric: ' +
+            preferenceValue
+        );
+      }
+    }
+  }
+  return OB.UTIL.backgroundMasterdataRefreshEnabled;
+};
\ No newline at end of file