Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs
===================================================================
diff -u -r82bd489a2b49af2c1cd898b7944b3c4f5db8a808 -r15fe8a0d6c08231dfa23bd58f84b6aa6adcba3e3
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 82bd489a2b49af2c1cd898b7944b3c4f5db8a808)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 15fe8a0d6c08231dfa23bd58f84b6aa6adcba3e3)
@@ -193,14 +193,8 @@
             };
         }
 
-        private static string ValidateAllDataAvailableAndGetErrorMessage(IAssessmentSection assessmentSection,
-                                                                         ClosingStructuresFailureMechanism failureMechanism)
+        private static string ValidateAllDataAvailableAndGetErrorMessage(IAssessmentSection assessmentSection)
         {
-            if (!failureMechanism.Sections.Any())
-            {
-                return RingtoetsCommonFormsResources.Plugin_AllDataAvailable_No_failure_mechanism_sections_imported;
-            }
-
             return HydraulicBoundaryDatabaseConnectionValidator.Validate(assessmentSection.HydraulicBoundaryDatabase);
         }
 
@@ -391,7 +385,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessageForCalculationsInFailureMechanism(ClosingStructuresFailureMechanismContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.Parent, context.WrappedData);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.Parent);
         }
 
         private void CalculateAll(ClosingStructuresFailureMechanismContext context)
@@ -536,7 +530,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessage(ClosingStructuresCalculationGroupContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection, context.FailureMechanism);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection);
         }
 
         private void CalculateAll(CalculationGroup group, ClosingStructuresCalculationGroupContext context)
@@ -634,7 +628,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessageForCalculation(ClosingStructuresCalculationContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection, context.FailureMechanism);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection);
         }
 
         private static void CalculationContextOnNodeRemoved(ClosingStructuresCalculationContext context, object parentData)