Partner functions for VSR &1 and plant &2 already created

What causes this issue?

You want to create new partner functions for the level that is
characterized by vendor subrange &V1& and plant &V2&.
This is not possible, as partner functions already exist for this
level.

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?

If you want to add new partner functions for the level, you can do this
in the appropriate level in the Partner Function screen.

Error message extract from SAP system. Copyright SAP SE.