Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs
===================================================================
diff -u -r54fd939cf2a3d8f718dad28faa24373334d4cc2e -r17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 54fd939cf2a3d8f718dad28faa24373334d4cc2e)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731)
@@ -189,14 +189,8 @@
             };
         }
 
-        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);
         }
 
@@ -386,7 +380,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessageForCalculationsInFailureMechanism(ClosingStructuresFailureMechanismContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.Parent, context.WrappedData);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.Parent);
         }
 
         private void CalculateAll(ClosingStructuresFailureMechanismContext context)
@@ -531,7 +525,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessage(ClosingStructuresCalculationGroupContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection, context.FailureMechanism);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection);
         }
 
         private void CalculateAll(CalculationGroup group, ClosingStructuresCalculationGroupContext context)
@@ -632,7 +626,7 @@
 
         private static string ValidateAllDataAvailableAndGetErrorMessageForCalculation(ClosingStructuresCalculationContext context)
         {
-            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection, context.FailureMechanism);
+            return ValidateAllDataAvailableAndGetErrorMessage(context.AssessmentSection);
         }
 
         private static void CalculationContextOnNodeRemoved(ClosingStructuresCalculationContext context, object parentData)