Enter bank selection using the payment program parameter

What causes this issue?

The information regarding bank selection required by the payment
program can only be defined when entering the parameters for the
payment program.

System Response

Processing is terminated.

How to fix this error?

You enter the bank to be selected by the payment program when
maintaining parameters, via <LS>Bank selection</>. If you copy the
selection from another payment run or from a template, the settings are
transferred and can then be changed.
<DS:TRAN.FPY1>Execute function</>

Error message extract from SAP system. Copyright SAP SE.