diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/DirectAdvanceAssignment.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/DirectAdvanceAssignment.java
index 520597ccb..0c2912b48 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/DirectAdvanceAssignment.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/DirectAdvanceAssignment.java
@@ -162,6 +162,15 @@ public class DirectAdvanceAssignment extends AdvanceAssignment {
         getOrderElement().markAsDirtyLastAdvanceMeasurementForSpreading();
     }
 
+    public void removeAdvanceMeasurements(
+            Set<AdvanceMeasurement> advanceMeasurements) {
+        for (AdvanceMeasurement each: advanceMeasurements) {
+            each.setAdvanceAssignment(null);
+        }
+        this.advanceMeasurements.removeAll(advanceMeasurements);
+        getOrderElement().markAsDirtyLastAdvanceMeasurementForSpreading();
+    }
+
     public void clearAdvanceMeasurements() {
         this.advanceMeasurements.clear();
         if (getOrderElement() != null) {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/IManageOrderElementAdvancesModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/IManageOrderElementAdvancesModel.java
index f59515205..5d5fd217e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/IManageOrderElementAdvancesModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/IManageOrderElementAdvancesModel.java
@@ -119,4 +119,7 @@ public interface IManageOrderElementAdvancesModel {
     void createPercentageAdvances(OrderElement orderElement)
             throws DuplicateAdvanceAssignmentForOrderElementException,
             DuplicateValueTrueReportGlobalAdvanceException;
+
+    void cancel();
+
 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
index 33c208dba..78d8d4447 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
@@ -118,6 +118,10 @@ public class ManageOrderElementAdvancesController extends
         return manageOrderElementAdvancesModel.getAdvanceAssignments();
     }
 
+    public void cancel() {
+        manageOrderElementAdvancesModel.cancel();
+    }
+
     public boolean close()  {
         return save();
     }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesModel.java
index 8fd25e04c..9da039905 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesModel.java
@@ -277,6 +277,30 @@ public class ManageOrderElementAdvancesModel implements
         }
     }
 
+    @Override
+    public void cancel() {
+        for (AdvanceAssignment each : listAdvanceAssignments) {
+            if (each instanceof DirectAdvanceAssignment) {
+                DirectAdvanceAssignment directAdvanceAssignment = (DirectAdvanceAssignment) each;
+                Set<AdvanceMeasurement> advanceMeasurements = getNewAdvanceMeasurementsFor(directAdvanceAssignment);
+                directAdvanceAssignment
+                        .removeAdvanceMeasurements(advanceMeasurements);
+            }
+        }
+    }
+
+    private Set<AdvanceMeasurement> getNewAdvanceMeasurementsFor(
+            DirectAdvanceAssignment directAdvanceAssignment) {
+        Set<AdvanceMeasurement> result = new HashSet<AdvanceMeasurement>();
+        for (AdvanceMeasurement each : directAdvanceAssignment
+                .getAdvanceMeasurements()) {
+            if (each.getId() == null) {
+                result.add(each);
+            }
+        }
+        return result;
+    }
+
     @Override
     public boolean addNewLineAdvanceAssignment() {
         DirectAdvanceAssignment newAdvance = DirectAdvanceAssignment.create();
@@ -761,7 +785,6 @@ public class ManageOrderElementAdvancesModel implements
                 types.add(PredefinedAdvancedTypes.CHILDREN.getTypeName());
             }
 
-            orderElementDAO.reattach(orderElement);
             Set<IndirectAdvanceAssignment> indirects = getSpreadIndirectAdvanceAssignmentWithSameType(
                     orderElement, types);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/advances/AdvanceAssignmentPlanningController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/advances/AdvanceAssignmentPlanningController.java
index 8221faecb..20dda08b9 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/advances/AdvanceAssignmentPlanningController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/advances/AdvanceAssignmentPlanningController.java
@@ -39,6 +39,7 @@ import org.zkoss.ganttz.data.Task;
 import org.zkoss.ganttz.extensions.IContextWithPlannerTask;
 import org.zkoss.zk.ui.Component;
 import org.zkoss.zk.ui.SuspendNotAllowedException;
+import org.zkoss.zk.ui.event.Event;
 import org.zkoss.zk.ui.util.GenericForwardComposer;
 import org.zkoss.zul.Window;
 
@@ -99,7 +100,13 @@ public class AdvanceAssignmentPlanningController extends GenericForwardComposer
         manageOrderElementAdvancesController.openWindow(orderElement);
     }
 
+    public void onClose(Event event) {
+        cancel();
+        event.stopPropagation();
+    }
+
     public void cancel() {
+        manageOrderElementAdvancesController.cancel();
         advanceAssignmentPlanningModel.cancel();
         close();
     }
diff --git a/navalplanner-webapp/src/main/webapp/planner/order.zul b/navalplanner-webapp/src/main/webapp/planner/order.zul
index 7d02b439d..4e9c2ef8b 100644
--- a/navalplanner-webapp/src/main/webapp/planner/order.zul
+++ b/navalplanner-webapp/src/main/webapp/planner/order.zul
@@ -56,8 +56,7 @@
             title="${advanceAssignmentController.title}"
             width="950px"
             visible="false"
-            closable="true"
-            onClose="self.visible = false; event.stopPropagation();" >
+            closable="true" >
 
         <vbox id="messagesAdvanceAssignmentContainer" />