3073 (0C01) (RC3073): MQRCCF_NOT_REGISTERED

Explanation

Subscriber or publisher is not registered.

A Deregister command has been issued to remove registrations for a topic, or topics, for which the publisher or subscriber is not registered. If multiple topics were specified on the command, it fails with a completion code of MQCC_WARNING if the publisher or subscriber was registered for some, but not all, of the topics specified. This error code is also returned to a subscriber issuing a Request Update command for a topic for which he does not have a subscription.

Programmer response

Investigate why the publisher or subscriber is not registered. In the case of a subscriber, the subscriptions might have expired, or been removed automatically by the broker if the subscriber is no longer authorized.