Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -r5cac0be5a13b25f4e34680f9c3da63ec537a4ef3 -r03fae882dff9db344c9380368a85ecdf3ab46f2a
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 5cac0be5a13b25f4e34680f9c3da63ec537a4ef3)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 03fae882dff9db344c9380368a85ecdf3ab46f2a)
@@ -47,6 +47,7 @@
 using Ringtoets.Piping.Forms.Views;
 using Ringtoets.Piping.IO.Exporters;
 using Ringtoets.Piping.IO.Importers;
+using Ringtoets.Piping.Plugin.ChangeHandlers;
 using Ringtoets.Piping.Plugin.FileImporter;
 using Ringtoets.Piping.Plugin.Properties;
 using Ringtoets.Piping.Primitives;
@@ -1029,24 +1030,57 @@
             parentGroupContext.NotifyObservers();
         }
 
-        private static StrictContextMenuItem CreateUpdateEntryAndExitPointItem(PipingCalculationGroupContext nodeData)
+        private StrictContextMenuItem CreateUpdateEntryAndExitPointItem(PipingCalculationGroupContext nodeData)
         {
+            IEnumerable<PipingCalculationScenario> calculations = nodeData.WrappedData.GetCalculations().OfType<PipingCalculationScenario>();
+
+            var isItemEnabled = true;
+            string toolTipText = Resources.PipingPlugin_CreateUpdateEntryAndExitPointItem_Update_all_calculations_with_characteristic_points_ToolTip;
+            if (!calculations.Any())
+            {
+                isItemEnabled = false;
+                toolTipText = Resources.PipingPlugin_CreateUpdateEntryAndExitPointItem_No_calculations_to_update_ToolTip;
+            }
+            else
+            {
+                if (calculations.All(calc => calc.InputParameters.SurfaceLine == null))
+                {
+                    isItemEnabled = false;
+                    toolTipText = Resources.PipingPlugin_CreateUpdateEntryAndExitPointItem_No_calculations_with_surfaceline_Tooltip;
+                }
+            }
+
             return new StrictContextMenuItem(
                 Resources.PipingPlugin_CreateUpdateEntryAndExitPointItem_Update_all_entry_and_exit_points,
-                Resources.PipingPlugin_CreateUpdateEntryAndExitPointItem_Update_all_calculations_with_characteristic_points_ToolTip,
+                toolTipText,
                 RingtoetsCommonFormsResources.UpdateItemIcon,
-                (sender, args) => UpdateAllEntryAndExitPointsOfAllCalculations(nodeData));
+                (sender, args) => UpdateAllEntryAndExitPointsOfAllCalculations(nodeData))
+            {
+                Enabled = isItemEnabled
+            };
         }
 
-        private static void UpdateAllEntryAndExitPointsOfAllCalculations(PipingCalculationGroupContext nodeData)
+        private void UpdateAllEntryAndExitPointsOfAllCalculations(PipingCalculationGroupContext nodeData)
         {
-            IEnumerable<PipingCalculationScenario> calculations = nodeData.WrappedData.GetCalculations().OfType<PipingCalculationScenario>();
-            foreach (PipingCalculationScenario calculation in calculations)
+            PipingCalculationScenario[] calculations = nodeData.WrappedData.GetCalculations().OfType<PipingCalculationScenario>().ToArray();
+
+            if (VerifyEntryAndExitPointUpdates(calculations))
             {
-                UpdateSurfaceLineDependentData(calculation);
+                foreach (PipingCalculationScenario calculation in calculations)
+                {
+                    UpdateSurfaceLineDependentData(calculation);
+                }
             }
         }
 
+        private bool VerifyEntryAndExitPointUpdates(IEnumerable<PipingCalculation> calculations)
+        {
+            var changeHandler = new UpdateEntryAndExitPointsCalculationGroupChangeHandler(calculations,
+                                                                                          new DialogBasedInquiryHelper(Gui.MainWindow));
+
+            return !changeHandler.RequireConfirmation() || changeHandler.InquireConfirmation();
+        }
+
         #endregion
 
         #region Ringtoets piping surface line importer