update communication details in BP transaction

Dear friends ,

Please give me your suggessions or code if available ,for updating standard address and communication details like telephone ,fax, mobile numbers to BP transaction using the BAPI bapi_bupa_address_change.Presently the BAPI is returning error like data to be uploaded is not found in target place.Which all are the mandatory entries for this bapi while uploading communication details?

REGARDS ,

PARVATHY