Global objects

With global objects (user and databases, for example), you must make changes on the primary and replicate them to the replica. If you issue a change request from the replica, the request fails.

It might be less obvious that replication is in play when you are making changes to global data, because you are connected to the system database, not a user database. Although the system database is not a replicated database, some of its contents are replicated. Therefore, you must make changes from the primary if replication is active.