diff -r 122601103251 -r ee8bbfba92c1 modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-form.js
--- a/modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-form.js	Thu May 25 13:16:54 2017 -0400
+++ b/modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-form.js	Mon May 29 18:33:59 2017 -0400
@@ -11,7 +11,7 @@
  * under the License.
  * The Original Code is Openbravo ERP.
  * The Initial Developer of the Original Code is Openbravo SLU
- * All portions are Copyright (C) 2014-2016 Openbravo SLU
+ * All portions are Copyright (C) 2014-2017 Openbravo SLU
  * All Rights Reserved.
  * Contributor(s):  ______________________________________.
  ************************************************************************
@@ -66,7 +66,10 @@
     }
     // Check validation rules (subordinated fields), when value of a
     // parent field is changed, all its subordinated are reset
-    affectedParams = this.paramWindow.dynamicColumns[item.name];
+    var dynamicColumns = this.paramWindow.dynamicColumns;
+    if (dynamicColumns && dynamicColumns[item.name]){
+      affectedParams = dynamicColumns[item.name];
+    }
     if (affectedParams) {
       for (i = 0; i < affectedParams.length; i++) {
         field = this.getField(affectedParams[i]);
diff -r 122601103251 -r ee8bbfba92c1 modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-view.js
--- a/modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-view.js	Thu May 25 13:16:54 2017 -0400
+++ b/modules/org.openbravo.client.application/web/org.openbravo.client.application/js/process/ob-parameter-window-view.js	Mon May 29 18:33:59 2017 -0400
@@ -222,7 +222,7 @@
       tab.setTitle(OB.I18N.getLabel('OBUIAPP_ProcessTitle_Done', [this.tabTitle]));
     }
 
-    if (data.showResultsInProcessView) {
+    if (data && data.showResultsInProcessView) {
       if (!this.resultLayout) {
         this.resultLayout = isc.HLayout.create({
           width: '100%',