Key &1 is not permitted for the payment order

Message type: E = Error

Message class: F0 - FI batch program messages

Message number: 423

Message text: Key &1 is not permitted for the payment order



What causes this issue?

You can only enter the following values as a key for the payment order:
1 Payment following advice note
2 Payment to an account
The payment order key is stored in <DS:DE.DTAT17>instruction field 2</>
for the data medium exchange.

Error message extract from SAP system. Copyright SAP SE.