BAPI_ACC_DOCUMENT_POST downpayment request.

Dear Gurus,

We are configuring BAPI program for advance paymnet receipt by using BAPI_ACC_DOCUMENT_POST. As F-47 is noted item it will have only one line item. we have to capture purchase order number here, I am not getting idea if I choose Accounts payable item which field will help to capture purchase order numbder?

Or there is any other alternative to capture purchase order and special GL indicator?

Regards,😊