Index: AXimpl/Dynamics/ProductItemUpsertIn/Converter/EnvelopeConverter.cls.xml
===================================================================
diff -u -r48332 -r48382
--- AXimpl/Dynamics/ProductItemUpsertIn/Converter/EnvelopeConverter.cls.xml	(.../EnvelopeConverter.cls.xml)	(revision 48332)
+++ AXimpl/Dynamics/ProductItemUpsertIn/Converter/EnvelopeConverter.cls.xml	(.../EnvelopeConverter.cls.xml)	(revision 48382)
@@ -51,7 +51,9 @@
 		#Dim LegalEntity as %String
 		Set ProductItemIterator = ##class(TECH.ListIterator).%New(Message.Body.MessageParts.MessagePart.Item)
 		Set LegalEntity = Message.Body.MessageParts.MessagePart.SenderId
-		
+		If $$$Not($Length(LegalEntity)){
+			Do ##class(TECH.Exceptions.InvalidInputException).Throw("SenderId is niet gespecifieerd in xml bericht. Fout in AX poort configuratie.")
+		}
 		While ProductItemIterator.HasNext(){
 			#dim ProductItem as AXif.Dynamics.ProductItemIn.MessageParts.AxdEntityItem = ProductItemIterator.Next()
 			Do ..ProductItemConverter.ConvertProductItem(ProductItem,LegalEntity)