Hi Peter,
Did you assign these payments formats to same My Bank/Bank accounts ?
Which bank account system picked and what is the sequence for it in the payment media format & payment methods in the Liquidity Management ?
We feel this is purely system determined during the payment proposal. If the liquidity of the bank account in question is lesser than this would check for other bank account and also determines the payment media format from the switchover bank account.
If system is picking diff bank account for testing can you block the remaining and try to execute the payment to check the result ?
If these things doesnt work, can you please report an incident so that we have check in the system and the payment you are referring to.
Thanks
Lokesh Sharma