diff --git a/src/org/openbravo/warehouse/advancedwarehouseoperations/centralbroker/GroupOfTasksConfirmator.java b/src/org/openbravo/warehouse/advancedwarehouseoperations/centralbroker/GroupOfTasksConfirmator.java
--- a/src/org/openbravo/warehouse/advancedwarehouseoperations/centralbroker/GroupOfTasksConfirmator.java
+++ b/src/org/openbravo/warehouse/advancedwarehouseoperations/centralbroker/GroupOfTasksConfirmator.java
@@ -29,6 +29,7 @@
 import org.openbravo.warehouse.advancedwarehouseoperations.OBAWOTask;
 import org.openbravo.warehouse.advancedwarehouseoperations.hooks.PostConfirmGroupOfTasksHook;
 import org.openbravo.warehouse.advancedwarehouseoperations.task.SimpleQueryBuilder;
+import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWOException;
 import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWO_Constants;
 import org.openbravo.warehouse.advancedwarehouseoperations.utils.Utilities;
 import org.slf4j.Logger;
@@ -152,7 +153,7 @@
       anyNotNegativeConfirmedQtyTaskId = ((OBAWOTask) queryBuilder.getQuery().list().get(0))
           .getId();
     } catch (Exception e) {
-      throw new OBException(OBMessageUtils.messageBD("OBAWO_GroupOfTasksWithoutTaskToProcess"));
+      throw new OBAWOException(OBMessageUtils.messageBD("OBAWO_GroupOfTasksWithoutTaskToProcess"));
     }
 
     final OBAWOTask anyTask = Utilities.getObjectProxyById(OBAWOTask.ENTITY_NAME,
diff --git a/src/org/openbravo/warehouse/advancedwarehouseoperations/eventobserver/TaskEventObserver.java b/src/org/openbravo/warehouse/advancedwarehouseoperations/eventobserver/TaskEventObserver.java
--- a/src/org/openbravo/warehouse/advancedwarehouseoperations/eventobserver/TaskEventObserver.java
+++ b/src/org/openbravo/warehouse/advancedwarehouseoperations/eventobserver/TaskEventObserver.java
@@ -41,6 +41,7 @@
 import org.openbravo.warehouse.advancedwarehouseoperations.ittalgorithm.PickingSalesOrder_ITT;
 import org.openbravo.warehouse.advancedwarehouseoperations.ittalgorithm.implementation.PickingSalesOrder_ITTAlgorithm;
 import org.openbravo.warehouse.advancedwarehouseoperations.utils.AWOReservationDeleteManager;
+import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWOException;
 import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWO_Constants;
 
 /**
@@ -221,7 +222,7 @@
             || attributesAreDifferent(previousAttrib, currentAttrib)
             || locatorsAreDifferent(previousLocatorFrom, currentLocatorFrom) || locatorsAreDifferent(
               previousLocatorTo, currentLocatorTo))) {
-      throw new OBException(OBMessageUtils.messageBD("OBAWO_UpdatingProcessedTask"));
+      throw new OBAWOException(OBMessageUtils.messageBD("OBAWO_UpdatingProcessedTask"));
     }
   }
 
diff --git a/src/org/openbravo/warehouse/advancedwarehouseoperations/mobile/processors/TaskProcessor.java b/src/org/openbravo/warehouse/advancedwarehouseoperations/mobile/processors/TaskProcessor.java
--- a/src/org/openbravo/warehouse/advancedwarehouseoperations/mobile/processors/TaskProcessor.java
+++ b/src/org/openbravo/warehouse/advancedwarehouseoperations/mobile/processors/TaskProcessor.java
@@ -21,6 +21,7 @@
 import org.openbravo.warehouse.advancedwarehouseoperations.centralbroker.CentralBroker;
 import org.openbravo.warehouse.advancedwarehouseoperations.mobile.OBAWOMobileUtils;
 import org.openbravo.warehouse.advancedwarehouseoperations.mobile.utils.OBAWOJSONProcessSimple;
+import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWOException;
 import org.openbravo.warehouse.advancedwarehouseoperations.utils.OBAWO_Constants;
 
 public class TaskProcessor extends OBAWOJSONProcessSimple {
@@ -36,7 +37,7 @@
 
       final OBAWOTask task = OBDal.getInstance().get(OBAWOTask.class, taskId);
       if (task.getStatus().equals(OBAWO_Constants.STATUS_CONFIRMED)) {
-        throw new OBException("Task " + task.getIdentifier() + " is already confirmed");
+        throw new OBAWOException("Task " + task.getIdentifier() + " is already confirmed");
       }
       CentralBroker.getNewInstance().processIndividualTask(task);