Index: Ringtoets/Integration/src/Ringtoets.Integration.IO/Creators/AggregatedSerializableFailureMechanismSectionAssemblyCreator.cs
===================================================================
diff -u -rcaf283454626efc376c01fc0e54ab4c902aaf1df -rdaba41934fd3e36f126b88abdd88bc4266e08d33
--- Ringtoets/Integration/src/Ringtoets.Integration.IO/Creators/AggregatedSerializableFailureMechanismSectionAssemblyCreator.cs	(.../AggregatedSerializableFailureMechanismSectionAssemblyCreator.cs)	(revision caf283454626efc376c01fc0e54ab4c902aaf1df)
+++ Ringtoets/Integration/src/Ringtoets.Integration.IO/Creators/AggregatedSerializableFailureMechanismSectionAssemblyCreator.cs	(.../AggregatedSerializableFailureMechanismSectionAssemblyCreator.cs)	(revision daba41934fd3e36f126b88abdd88bc4266e08d33)
@@ -27,6 +27,7 @@
 using Ringtoets.AssemblyTool.IO.Model.Enums;
 using Ringtoets.Integration.IO.AggregatedSerializable;
 using Ringtoets.Integration.IO.Assembly;
+using Ringtoets.Integration.IO.Exceptions;
 using Ringtoets.Integration.IO.Helpers;
 using Ringtoets.Integration.IO.Properties;
 
@@ -48,6 +49,7 @@
         /// <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/> for.</param>
         /// <returns>An <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="AssemblyExportException">Thrown when the assembly result cannot be exported.</exception>
         public static AggregatedSerializableFailureMechanismSectionAssembly Create(IdentifierGenerator idGenerator,
                                                                                    SerializableFailureMechanismSectionCollection serializableCollection,
                                                                                    SerializableFailureMechanism serializableFailureMechanism,
@@ -73,6 +75,12 @@
                 throw new ArgumentNullException(nameof(sectionResult));
             }
 
+            if (!IsSectionAssemblyResultValid(sectionResult.CombinedAssembly))
+            {
+                throw new AssemblyExportException(@"The assembly result is invalid and cannot be exported.");
+            }
+
+
             SerializableFailureMechanismSection failureMechanismSection = SerializableFailureMechanismSectionCreator.Create(idGenerator,
                                                                                                                             serializableCollection,
                                                                                                                             sectionResult.FailureMechanismSection);
@@ -98,6 +106,7 @@
         /// <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/> for.</param>
         /// <returns>An <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="AssemblyExportException">Thrown when the assembly result cannot be exported.</exception>
         public static AggregatedSerializableFailureMechanismSectionAssembly Create(IdentifierGenerator idGenerator,
                                                                                    SerializableFailureMechanismSectionCollection serializableCollection,
                                                                                    SerializableFailureMechanism serializableFailureMechanism,
@@ -123,6 +132,12 @@
                 throw new ArgumentNullException(nameof(sectionResult));
             }
 
+            if (!IsSectionAssemblyResultValid(sectionResult.CombinedAssembly))
+            {
+                throw new AssemblyExportException(@"The assembly result is invalid and cannot be exported.");
+            }
+
+
             SerializableFailureMechanismSection failureMechanismSection = SerializableFailureMechanismSectionCreator.Create(idGenerator,
                                                                                                                             serializableCollection,
                                                                                                                             sectionResult.FailureMechanismSection);
@@ -148,6 +163,7 @@
         /// <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/> for.</param>
         /// <returns>An <see cref="AggregatedSerializableFailureMechanismSectionAssembly"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="AssemblyExportException">Thrown when the assembly result cannot be exported.</exception>
         public static AggregatedSerializableFailureMechanismSectionAssembly Create(IdentifierGenerator idGenerator,
                                                                                    SerializableFailureMechanismSectionCollection serializableCollection,
                                                                                    SerializableFailureMechanism serializableFailureMechanism,
@@ -173,6 +189,11 @@
                 throw new ArgumentNullException(nameof(sectionResult));
             }
 
+            if (!IsSectionAssemblyResultValid(sectionResult.CombinedAssembly))
+            {
+                throw new AssemblyExportException(@"The assembly result is invalid and cannot be exported.");
+            }
+
             SerializableFailureMechanismSection failureMechanismSection = SerializableFailureMechanismSectionCreator.Create(idGenerator,
                                                                                                                             serializableCollection,
                                                                                                                             sectionResult.FailureMechanismSection);
@@ -187,6 +208,11 @@
                                                                              failureMechanismSectionAssembly);
         }
 
+        private static bool IsSectionAssemblyResultValid(ExportableSectionAssemblyResult result)
+        {
+            return result.AssemblyCategory != FailureMechanismSectionAssemblyCategoryGroup.None;
+        }
+
         private static SerializableFailureMechanismSectionAssemblyResult[] CreateAssemblySectionResults(ExportableAggregatedFailureMechanismSectionAssemblyResult sectionResult)
         {
             var serializableSectionAssemblyResults = new List<SerializableFailureMechanismSectionAssemblyResult>();