payment medium program with DME format

Hi!

I am working for south african client.

The standard DME format available for south africa is ACB_ZA ( acb format).

The payment program used is RFFOZA_A and assigned to payment method "A- ACB clearing".

But the format given by bank is different.

So, here i have two options:

1. Change the DME format through DMEE and other configuration and assign the DME format in Payment medium work bench in payment method country step.

2. Copy the payment program RFFOZA_A to ZRFFZA_A, assign the new DME format to generate DME file in new format.

is new DME foramt for example ZACB_ZA in payment program ZRFFZA_A?

regs,

ramesh