No authorization for planning plant &

What causes this issue?

You are trying to process an object for which the
planning plant &V1& has been entered and your
user master record does not have the necessary entry for this.

System Response

INCLUDE 'KEINE-VERARBEITUNG' OBJECT DOKU ID TX LANGUAGE E

How to fix this error?

An entry must be made in your user master record that will permit you
to process objects with planning plant &V1&.
INCLUDE 'SYSTEMVERWALTER' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.