Test output not allowed by local setting of correspondence type &1

What causes this issue?

For the correspondence request with the correspondence key &V1&, test
output is not permitted since this is explicitly prohibited in
Customizing in the local settings of correspondence type &V2&.

System Response

There is no test output for the correspondence request.

How to fix this error?

If you want to permit <PF>Test Output</> for correspondence type &V2& in
Customizing, change the local settings of correspondence type &V2&.
However, note the corresponding setting in the definition of the
correspondence type, since this can only be restricted but not enhanced.
Test output should not be permitted in live systems.

Procedure for System Administrators

The change to the local settings is not transported automatically. If
you want a transport, you have to include the entries in a transport
request.

Error message extract from SAP system. Copyright SAP SE.