P04571 - Write Payment Process

We had requirement to develop a custom bank payment file format as the standard format was not meeting the requirement.

In P0417 we set up the print payment to point to the new custom report. Report is R56XX01

We then created the payment control group which has picked the above set up and has assigned the print program as above report.

But when we perform the WRITE step using P04571 it does not call the above print payment report.

We had set the UDC 04/PP with above report reference already. Is there any other UDC also to be set up? Or is there any other set up that we are missing.