&1 &2 does not have additional account assignment

What causes this issue?

In the controlling scenario you can make a setting for the account
assignment specified by the requesting object to be entered in the
account assignment management as an additional account assignment.
The requesting object &v1& &V2& has no additional account assignment.
Customizing for the business scenario &v3& was interpreted at &v4&.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.