Deactivate the 'Assign new country key' indicator

What causes this issue?

You want to assign a new key to country code information, although the
'exclusion' parameter has been selected. A new key assignment of
entries that are to be excluded is not a good idea.

System Response

The system issues an error message.

How to fix this error?

Deactivate the 'Assign new key to country' parameter.

Error message extract from SAP system. Copyright SAP SE.