Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/AssessmentSectionUpdateExtensionsTest.cs
===================================================================
diff -u -r424e934ab7fcdef2661e3fee605423ee9fd1b489 -r15583423fc85999780f51034039e46af720211ab
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/AssessmentSectionUpdateExtensionsTest.cs	(.../AssessmentSectionUpdateExtensionsTest.cs)	(revision 424e934ab7fcdef2661e3fee605423ee9fd1b489)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/AssessmentSectionUpdateExtensionsTest.cs	(.../AssessmentSectionUpdateExtensionsTest.cs)	(revision 15583423fc85999780f51034039e46af720211ab)
@@ -165,6 +165,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
             // Call
@@ -215,6 +220,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
             // Call
@@ -265,6 +275,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             ringtoetsEntities.ReferenceLinePointEntities.Add(referenceLinePointEntity);
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
@@ -314,6 +329,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
             // Call
@@ -377,6 +397,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
             ringtoetsEntities.HydraulicLocationEntities.Add(hydraulicLocationEntity);
 
@@ -431,6 +456,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             ringtoetsEntities.FailureMechanismEntities.Add(failureMechanismEntity);
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
@@ -482,6 +512,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
             ringtoetsEntities.FailureMechanismEntities.Add(failureMechanismEntity);
             FillWithFailureMechanismEntities(ringtoetsEntities.FailureMechanismEntities);
 
@@ -563,6 +598,11 @@
                 PipingFailureMechanismMetaEntityId = section.PipingFailureMechanism.PipingProbabilityAssessmentInput.StorageId,
                 FailureMechanismEntityId = section.PipingFailureMechanism.StorageId
             });
+            ringtoetsEntities.GrassCoverErosionInwardsFailureMechanismMetaEntities.Add(new GrassCoverErosionInwardsFailureMechanismMetaEntity
+            {
+                GrassCoverErosionInwardsFailureMechanismMetaEntityId = section.GrassCoverErosionInwards.GeneralInput.StorageId,
+                FailureMechanismEntityId = section.GrassCoverErosionInwards.StorageId
+            });
 
             ringtoetsEntities.FailureMechanismEntities.Add(macrostabilityInwardsEntity);
             ringtoetsEntities.FailureMechanismEntities.Add(macrostabilityOutwardsEntity);
@@ -645,7 +685,11 @@
                 },
                 GrassCoverErosionInwards =
                 {
-                    StorageId = failureMechanismId++
+                    StorageId = failureMechanismId++,
+                    GeneralInput =
+                    {
+                        StorageId = 12
+                    }
                 },
                 MacrostabilityInwards =
                 {