Index: DOM/PM/impl/ProductAPI.cls.xml
===================================================================
diff -u -r45894 -r47103
--- DOM/PM/impl/ProductAPI.cls.xml	(.../ProductAPI.cls.xml)	(revision 45894)
+++ DOM/PM/impl/ProductAPI.cls.xml	(.../ProductAPI.cls.xml)	(revision 47103)
@@ -124,6 +124,38 @@
 ]]></Implementation>
 </Method>
 
+<Method name="GeefIdentNummerVoorProductId">
+<FormalSpec>ProductId:%String</FormalSpec>
+<ReturnType>%String</ReturnType>
+<Implementation><![CDATA[
+	#dim IdentNummer As %String = ""
+	
+	If (..BestaatProduct(ProductId)) {
+		Set IdentNummer = ..GeefProduct(ProductId).GeefIdentNr()
+	} Else {
+		Do ##class(TECH.ExceptionHandler).Throw(##class(TECH.Exceptions.InvalidInputException).%New("Geen Product gevonden met ProductId '" _ ProductId _ "'."))
+	}
+	
+	Quit IdentNummer
+]]></Implementation>
+</Method>
+
+<Method name="GeefProductIdVoorIdentNummer">
+<FormalSpec>IdentNummer:%String</FormalSpec>
+<ReturnType>%String</ReturnType>
+<Implementation><![CDATA[
+	#dim ProductId As %String = ""
+	
+	If (..BestaatIdentNr(IdentNummer)) {
+		Set ProductId = ##class(Prod.Product).IdentNrToPRNr(IdentNummer)
+	} Else {
+		Do ##class(TECH.ExceptionHandler).Throw(##class(TECH.Exceptions.InvalidInputException).%New("Geen Product gevonden met IdentNummer '" _ IdentNummer _ "'."))
+	}
+	
+	Quit ProductId
+]]></Implementation>
+</Method>
+
 <Method name="GeefProductVolgensKorttekst">
 <FormalSpec>Korttekst:%String</FormalSpec>
 <ReturnType>DOM.PM.Product</ReturnType>