When a WebSphere® MQ Publish/Subscribe broker is migrated to a WebSphere Event Broker broker (using the migmqbrk command), the streams supported at the time of the migration are replicated exactly in the WebSphere Event Broker broker.
No changes can be made subsequently; that is, no streams can be added to, or removed from, this replicated set.
The migration is not complete until you have created and deployed message flows that process all these streams.