Index: DOM/VKP/impl/DataM/DataMBonAbstract.cls.xml
===================================================================
diff -u -r53915 -r53926
--- DOM/VKP/impl/DataM/DataMBonAbstract.cls.xml	(.../DataMBonAbstract.cls.xml)	(revision 53915)
+++ DOM/VKP/impl/DataM/DataMBonAbstract.cls.xml	(.../DataMBonAbstract.cls.xml)	(revision 53926)
@@ -74,7 +74,7 @@
 <ReturnType>%Status</ReturnType>
 <Implementation><![CDATA[
 	Set ..BonNummer = BonNummer
-	Set ..KlantNr = $P(^KU1(BonNummer,"F"),"\")
+	Set:($$$HasLength(BonNummer)) ..KlantNr = $P($G(^KU1(BonNummer,"F")),"\",1)
 	Set ..TransportApi = ##class(DOM.DomeinContext).Instance().GeefTransportAPI()
 	Set ..OrderApi = ##class(DOM.DomeinContext).Instance().GeefOrderAPI()
 	Set ..PersonalityViaOorsprongBepaler = ##class(DOM.VKP.impl.DataM.DataMOrder.PersonalityViaOorsprongBepaler).%New()