| No debit memo notification found for &1 &2

What causes this issue?

No debit memo notification was found for business partner &V1&.

System Response

In the settings for the company code, it was specified that
notifications can be required for debit memos. The payment method to be
used in the present instance (derived from the item or the account/
contract) is either defined as of the type "notification", or no payment
method was defined. It is therefore not possible to make the payment for
the amount due.
In the same way as above, you can also specify that the outgoing payment
of credits has to be notified with a specific payment method. If this
payment method is entered in the item or as the only payment method in
the account/contract, the validity of the notification is also checked.
If an outgoing payment is to occur without notification, a payment
method that is not of the type "notification", has to be entered in the
item or as the only outgoing payment method in the account/contract.

How to fix this error?

To create debit memo notifications, start transaction <LS>FPDDAX</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.