Index: DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs
===================================================================
diff -u -r4052 -r4373
--- DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs	(.../FillDamFromXmlInput.cs)	(revision 4052)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs	(.../FillDamFromXmlInput.cs)	(revision 4373)
@@ -295,6 +295,11 @@
 
         if (input.PipingModelTypeSpecified)
         {
+            if (input.PipingModelType == InputPipingModelType.Sellmeijer4Forces ||
+                input.PipingModelType == InputPipingModelType.SellmeijerVnk)
+            {
+                throw new NotImplementedException();
+            }
             calculationSpecification.PipingModelType = ConversionHelper.ConvertToPipingModelType(input.PipingModelType);
         }