Termination of the master change import

If a master change is not possible (message MCA0104 is output) or if it is terminated due to an error (message MCA0103 is output), systems support can initiate a new master change after the cause of the error has been eliminated (IMPORT-PUBSET command with master change). If the master change is not possible with this command either, the pubset session must be ended and the pubset exported from all sharers.