How to set the CurSource in OPOR with DI API?

when i try to export my PO data to the SAP B, i found the following error message "5002 invalid currency code ,VendorNum[Line1], RM",

it is possible that i can set the value of "curSource (L/S/C)" at the OPOR when adding data to PO?

Message was edited by:

lew vion

Message was edited by:

lew vion