PRGZ-03634
The "{0}" user (specified in "redo_transport_user" parameter) requires SYSOPER privileges (or SYSDBA in former database versions) for database "{1}"
Cause
An attempt to migrate a database with zero downtime was rejected because the specified user in 'redo_transport_user' initialization parameter doesn't have enough privileges.
Action
Ensure the 'redo_transport_user' initialization parameter specifies a user registered in the database password file and is granted SYSOPER privileges (SYSDBA may not be required in recent releases), then retry the operation.