Specify the ISR/QR reference number or delete QR-IBAN

What causes this issue?

You have entered a QR-IBAN number on the screen. For payments with
QR-IBAN, you must also enter the ISR/QR reference number.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

When you enter a QR-IBAN number, also enter the ISR/QR reference number
that the system can use for your payments.
If you do not want to use QR-IBAN for your payments, please delete the
QR-IBAN number.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.