Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs
===================================================================
diff -u -ree0a1bf9c52c6de7510683c5febf80d3e9922cf3 -rb1d00f94d37eec65843f82a7924551561141c5a8
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision ee0a1bf9c52c6de7510683c5febf80d3e9922cf3)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision b1d00f94d37eec65843f82a7924551561141c5a8)
@@ -361,14 +361,8 @@
         #region DuneLocationCalculationsContext TreeNodeInfo
 
         private static string ValidateAllDataAvailableAndGetErrorMessage(IAssessmentSection assessmentSection,
-                                                                         double failureMechanismContribution,
                                                                          double norm)
         {
-            if (failureMechanismContribution <= 0.0)
-            {
-                return RingtoetsCommonFormsResources.Contribution_of_failure_mechanism_zero;
-            }
-
             string errorMessage = HydraulicBoundaryDatabaseConnectionValidator.Validate(assessmentSection.HydraulicBoundaryDatabase);
 
             if (string.IsNullOrEmpty(errorMessage))
@@ -399,7 +393,6 @@
                 });
 
             string validationText = ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection,
-                                                                               context.FailureMechanism.Contribution,
                                                                                context.GetNormFunc());
 
             if (!string.IsNullOrEmpty(validationText))
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs
===================================================================
diff -u -r34b41b7c2a23389f88d686f26e6e8e90fbdd645a -rb1d00f94d37eec65843f82a7924551561141c5a8
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsContextTreeNodeInfoTest.cs)	(revision 34b41b7c2a23389f88d686f26e6e8e90fbdd645a)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsContextTreeNodeInfoTest.cs)	(revision b1d00f94d37eec65843f82a7924551561141c5a8)
@@ -144,7 +144,7 @@
             // Setup
             using (var treeViewControl = new TreeViewControl())
             {
-                var assessmentSection = mocks.Stub<IAssessmentSection>();
+                IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(mocks);
                 var context = new DuneLocationCalculationsContext(new ObservableList<DuneLocationCalculation>(),
                                                                   new DuneErosionFailureMechanism(),
                                                                   assessmentSection,
@@ -225,56 +225,6 @@
         }
 
         [Test]
-        public void ContextMenuStrip_FailureMechanismContributionZero_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();
-
-                var builder = new CustomItemsOnlyContextMenuBuilder();
-                var context = new DuneLocationCalculationsContext(new ObservableList<DuneLocationCalculation>(),
-                                                                  failureMechanism,
-                                                                  assessmentSection,
-                                                                  () => 0.01,
-                                                                  "A");
-
-                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",
-                                                                  "De bijdrage van dit toetsspoor is nul.",
-                                                                  RingtoetsCommonFormsResources.CalculateAllIcon,
-                                                                  false);
-                }
-            }
-        }
-
-        [Test]
         public void ContextMenuStrip_InvalidNorm_ContextMenuItemCalculateAllDisabledAndTooltipSet()
         {
             // Setup