Index: DOM/VKP/impl/DataM/DataMKlantNative.cls.xml
===================================================================
diff -u -r34716 -r34876
--- DOM/VKP/impl/DataM/DataMKlantNative.cls.xml	(.../DataMKlantNative.cls.xml)	(revision 34716)
+++ DOM/VKP/impl/DataM/DataMKlantNative.cls.xml	(.../DataMKlantNative.cls.xml)	(revision 34876)
@@ -582,7 +582,7 @@
 
 <Method name="GeefOpenstaandeFacturenIterator">
 <ReturnType>TECH.Iterator</ReturnType>
-<Implementation><![CDATA[	quit ##class(DOM.VKP.impl.DataM.DataMKlantOpenstaandeFacturenIterator).%New(..KlantNummer)
+<Implementation><![CDATA[	quit ##class(DOM.VKP.impl.DataM.DataMKlantOpenstaandeFacturenIterator).%New(##class(DOM.DomeinContext).Instance().GeefLegacyPartijAPI().GeefKlantPartijID(..KlantNummer))
 ]]></Implementation>
 </Method>