Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs
===================================================================
diff -u -r90f9c5637e4bbbe4204f45fdc549b416ba4f3453 -ree0a1bf9c52c6de7510683c5febf80d3e9922cf3
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision 90f9c5637e4bbbe4204f45fdc549b416ba4f3453)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision ee0a1bf9c52c6de7510683c5febf80d3e9922cf3)
@@ -250,7 +250,7 @@
         {
             return new object[]
             {
-                new FailureMechanismAssemblyCategoriesContext(failureMechanism, assessmentSection, () => failureMechanism.GeneralInput.N), 
+                new FailureMechanismAssemblyCategoriesContext(failureMechanism, assessmentSection, () => failureMechanism.GeneralInput.N),
                 new FailureMechanismSectionResultContext<DuneErosionFailureMechanismSectionResult>(
                     failureMechanism.SectionResults, failureMechanism),
                 failureMechanism.OutputComments
@@ -361,14 +361,22 @@
         #region DuneLocationCalculationsContext TreeNodeInfo
 
         private static string ValidateAllDataAvailableAndGetErrorMessage(IAssessmentSection assessmentSection,
-                                                                         double failureMechanismContribution)
+                                                                         double failureMechanismContribution,
+                                                                         double norm)
         {
             if (failureMechanismContribution <= 0.0)
             {
                 return RingtoetsCommonFormsResources.Contribution_of_failure_mechanism_zero;
             }
 
-            return HydraulicBoundaryDatabaseConnectionValidator.Validate(assessmentSection.HydraulicBoundaryDatabase);
+            string errorMessage = HydraulicBoundaryDatabaseConnectionValidator.Validate(assessmentSection.HydraulicBoundaryDatabase);
+
+            if (string.IsNullOrEmpty(errorMessage))
+            {
+                TargetProbabilityCalculationServiceHelper.ValidateTargetProbability(norm, logMessage => errorMessage = logMessage);
+            }
+
+            return errorMessage;
         }
 
         private ContextMenuStrip DuneLocationCalculationsContextMenuStrip(DuneLocationCalculationsContext context, object parent, TreeViewControl treeViewControl)
@@ -391,7 +399,9 @@
                 });
 
             string validationText = ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection,
-                                                                               context.FailureMechanism.Contribution);
+                                                                               context.FailureMechanism.Contribution,
+                                                                               context.GetNormFunc());
+
             if (!string.IsNullOrEmpty(validationText))
             {
                 calculateAllItem.Enabled = false;
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs
===================================================================
diff -u -recb0e5b29e11012efd3944171530d9310e07804a -ree0a1bf9c52c6de7510683c5febf80d3e9922cf3
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsContextTreeNodeInfoTest.cs)	(revision ecb0e5b29e11012efd3944171530d9310e07804a)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsContextTreeNodeInfoTest.cs)	(revision ee0a1bf9c52c6de7510683c5febf80d3e9922cf3)
@@ -275,6 +275,64 @@
         }
 
         [Test]
+        public void ContextMenuStrip_InvalidNorm_ContextMenuItemCalculateAllDisabledAndTooltipSet()
+        {
+            // Setup
+            string validFilePath = Path.Combine(testDataPath, "complete.sqlite");
+
+            using (var treeViewControl = new TreeViewControl())
+            {
+                var assessmentSection = mocks.Stub<IAssessmentSection>();
+
+                assessmentSection.Stub(a => a.HydraulicBoundaryDatabase).Return(new HydraulicBoundaryDatabase
+                {
+                    FilePath = validFilePath,
+                    Version = "1.0"
+                });
+
+                var failureMechanism = new DuneErosionFailureMechanism
+                {
+                    Contribution = 10
+                };
+
+                var duneLocationCalculations = new ObservableList<DuneLocationCalculation>
+                {
+                    new DuneLocationCalculation(new TestDuneLocation())
+                };
+                var context = new DuneLocationCalculationsContext(duneLocationCalculations,
+                                                                  failureMechanism,
+                                                                  assessmentSection,
+                                                                  () => 1.0,
+                                                                  "A");
+
+                var builder = new CustomItemsOnlyContextMenuBuilder();
+
+                var gui = mocks.Stub<IGui>();
+                gui.Stub(cmp => cmp.Get(context, treeViewControl)).Return(builder);
+
+                mocks.ReplayAll();
+
+                plugin.Gui = gui;
+
+                failureMechanism.SetDuneLocations(new[]
+                {
+                    new TestDuneLocation()
+                });
+
+                // Call
+                using (ContextMenuStrip menu = info.ContextMenuStrip(context, null, treeViewControl))
+                {
+                    // Assert
+                    TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuCalculateAllIndex,
+                                                                  "Alles be&rekenen",
+                                                                  "Doelkans is te groot om een berekening uit te kunnen voeren.",
+                                                                  RingtoetsCommonFormsResources.CalculateAllIcon,
+                                                                  false);
+                }
+            }
+        }
+
+        [Test]
         public void ContextMenuStrip_AllRequiredInputSet_ContextMenuItemCalculateAllEnabled()
         {
             // Setup