4020 (0FB4) (RC4020): MQRCCF_LISTENER_NOT_STARTED

Explanation

Listener not started.

The listener program could not be started. Either the communications subsystem has not been started, or the number of current channels using the communications subsystem is the maximum allowed, or there are too many jobs waiting in the queue.

Programmer response

Ensure the communications subsystem is started or retry the operation later. Increase the number of current channels allowed, if appropriate.