Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresDataSynchronizationService.cs
===================================================================
diff -u -r2a0fbe6ec22928831305671ecd4f41030b827250 -rdb1a4833c509fe535570e8a4b9c90c0ec242fc99
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresDataSynchronizationService.cs	(.../StabilityPointStructuresDataSynchronizationService.cs)	(revision 2a0fbe6ec22928831305671ecd4f41030b827250)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresDataSynchronizationService.cs	(.../StabilityPointStructuresDataSynchronizationService.cs)	(revision db1a4833c509fe535570e8a4b9c90c0ec242fc99)
@@ -143,6 +143,11 @@
                 .ToArray();
             foreach (StructuresCalculation<StabilityPointStructuresInput> calculation in calculationWithRemovedStabilityPointStructure)
             {
+                foreach (var calculationWithRemovedOutput in RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation))
+                {
+                    changedObservables.Add(calculationWithRemovedOutput);
+                }
+
                 calculation.InputParameters.Structure = null;
                 changedObservables.Add(calculation.InputParameters);
             }
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs
===================================================================
diff -u -racfa9d23d1770ca3171668552ddbe6d63fdd0dcd -rdb1a4833c509fe535570e8a4b9c90c0ec242fc99
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs	(.../StabilityPointStructuresDataSynchronizationServiceTest.cs)	(revision acfa9d23d1770ca3171668552ddbe6d63fdd0dcd)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs	(.../StabilityPointStructuresDataSynchronizationServiceTest.cs)	(revision db1a4833c509fe535570e8a4b9c90c0ec242fc99)
@@ -27,6 +27,7 @@
 using NUnit.Framework;
 using Ringtoets.Common.Data.Calculation;
 using Ringtoets.Common.Data.FailureMechanism;
+using Ringtoets.Common.Data.Probability;
 using Ringtoets.Common.Data.Structures;
 using Ringtoets.Common.Data.TestUtil;
 using Ringtoets.Common.Service;
@@ -167,13 +168,16 @@
             StabilityPointStructuresFailureMechanismSectionResult[] sectionResultsWithStructure = failureMechanism.SectionResults
                                                                                                                   .Where(sr => calculationsWithStructure.Contains(sr.Calculation))
                                                                                                                   .ToArray();
+            StructuresCalculation<StabilityPointStructuresInput>[] calculationsWithOutput = calculationsWithStructure.Where(c => c.HasOutput)
+                                                                                                             .ToArray();
 
             int originalNumberOfSectionResultAssignments = failureMechanism.SectionResults.Count(sr => sr.Calculation != null);
             StabilityPointStructuresFailureMechanismSectionResult[] sectionResults = failureMechanism.SectionResults
                                                                                                      .Where(sr => calculationsWithStructure.Contains(sr.Calculation))
                                                                                                      .ToArray();
 
             // Precondition
+            CollectionAssert.IsNotEmpty(calculationsWithOutput);
             CollectionAssert.IsNotEmpty(calculationsWithStructure);
             CollectionAssert.IsNotEmpty(sectionResultsWithStructure);
 
@@ -188,19 +192,27 @@
             {
                 Assert.IsNull(calculation.InputParameters.Structure);
             }
+            foreach (StructuresCalculation<StabilityPointStructuresInput> calculation in calculationsWithOutput)
+            {
+                Assert.IsFalse(calculation.HasOutput);
+            }
             foreach (StabilityPointStructuresFailureMechanismSectionResult sectionResult in sectionResultsWithStructure)
             {
                 Assert.IsNull(sectionResult.Calculation);
             }
 
             IObservable[] array = affectedObjects.ToArray();
-            Assert.AreEqual(1 + calculationsWithStructure.Length + sectionResultsWithStructure.Length,
+            Assert.AreEqual(1 + calculationsWithOutput.Length + calculationsWithStructure.Length + sectionResultsWithStructure.Length,
                             array.Length);
             CollectionAssert.Contains(array, failureMechanism.StabilityPointStructures);
             foreach (StructuresCalculation<StabilityPointStructuresInput> calculation in calculationsWithStructure)
             {
                 CollectionAssert.Contains(array, calculation.InputParameters);
             }
+            foreach (StructuresCalculation<StabilityPointStructuresInput> calculation in calculationsWithOutput)
+            {
+                CollectionAssert.Contains(array, calculation);
+            }
             foreach (StabilityPointStructuresFailureMechanismSectionResult result in sectionResultsWithStructure)
             {
                 CollectionAssert.Contains(array, result);
@@ -230,7 +242,8 @@
                 {
                     ForeshoreProfile = profile,
                     Structure = structure1
-                }
+                },
+                Output = new ProbabilityAssessmentOutput(0, 0, 0, 0, 0)
             };
             StructuresCalculation<StabilityPointStructuresInput> calculation2 = new TestStabilityPointStructuresCalculation
             {