The Simplest Payment Instruction Format for Payment Process Profile

Hi all

For our R12 environment, the AP payment operation is really simple that we don't need to print or create any document after a payment is done on an AP invoice.  We have another system to manage bank EFT which take data directly from Oracle.  So for the Payment Process Profile (PPP) we don't want to kick off the Payment Instruction to generate anything, or just generate the simplest thing if this process cannot be excluded.  Anyone have similar requirement about AP payment ? Or could you give any suggestion what configuration I can use to minimize the payment process action