getting Internal error: Refe. customer does not exist in master record

Hi ,

I am using SOAP< >PI7.1< >RFC (BAPI_CUSTOMER_CREATEFROMDATA1)

I am always getting back getting Internal error: Refe. customer does not exist in master record in the bAPI response.I have done the following to checkl the mappings:

(1) Used mapping test editor to see if the data is getting populated ok from SOAP request to RFC request

(2) Using the same data to load customer into Backend using ABAP testing tool(Which works well)

I have also checked the RFC adaptor connection properties which matches with the correct SAP backend

So what may be getting wrong?