Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs
===================================================================
diff -u -ra5d89a068bbe74f954d1ef57266a39872afc9190 -rf901ac8826dcce6212b8f7c17e714046ef52de57
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision a5d89a068bbe74f954d1ef57266a39872afc9190)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision f901ac8826dcce6212b8f7c17e714046ef52de57)
@@ -1820,7 +1820,9 @@
                                                                                               new DesignWaterLevelCalculationMessageProvider(nodeData.CategoryBoundaryName));
                 });
 
-            SetHydraulicsMenuItemEnabledStateAndTooltip(nodeData.AssessmentSection, designWaterLevelItem);
+            SetHydraulicsMenuItemEnabledStateAndTooltip(nodeData.AssessmentSection,
+                                                        nodeData.GetNormFunc(),
+                                                        designWaterLevelItem);
 
             return Gui.Get(nodeData, treeViewControl)
                       .AddOpenItem()
@@ -1852,7 +1854,9 @@
                                                                                         new WaveHeightCalculationMessageProvider(nodeData.CategoryBoundaryName));
                 });
 
-            SetHydraulicsMenuItemEnabledStateAndTooltip(nodeData.AssessmentSection, waveHeightItem);
+            SetHydraulicsMenuItemEnabledStateAndTooltip(nodeData.AssessmentSection,
+                                                        nodeData.GetNormFunc(),
+                                                        waveHeightItem);
 
             return Gui.Get(nodeData, treeViewControl)
                       .AddOpenItem()
@@ -1873,6 +1877,21 @@
             }
         }
 
+        private static void SetHydraulicsMenuItemEnabledStateAndTooltip(IAssessmentSection assessmentSection, double norm, StrictContextMenuItem menuItem)
+        {
+            SetHydraulicsMenuItemEnabledStateAndTooltip(assessmentSection, menuItem);
+            if (!menuItem.Enabled)
+            {
+                return;
+            }
+
+            TargetProbabilityCalculationServiceHelper.ValidateTargetProbability(norm, logMessage =>
+            {
+                menuItem.Enabled = false;
+                menuItem.ToolTipText = logMessage;
+            });
+        }
+
         private ContextMenuStrip HydraulicBoundaryDatabaseContextMenuStrip(HydraulicBoundaryDatabaseContext nodeData, object parentData, TreeViewControl treeViewControl)
         {
             var connectionItem = new StrictContextMenuItem(