There is no function module for account &1 &2

What causes this issue?

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

System Response

How to fix this error?

Maintain an authorization function for account &V1& &V2& in Customizing
for <DS:SIMG.SIMG_CFMENUOLSDOVFF1>payment cards</>. Select the account
and choose <ZH>Details</>, or simply double-click on the account, to
enter a function module.

Error message extract from SAP system. Copyright SAP SE.