APWMQ Agent (nsqmq) submits commands on behalf of the user to the mq command server.
If nsqmq is running without any security, the commands are submitted with the user id that is used to start nqsmq, typically mqm. If +u (alternate user authority checking) is enabled, the command is submitted with the user id received in the PCF command from Workgroup Server. That user id can be one of the following:
Whichever user id is used to submit the command, it must be registered with the WMQ OAM (Object Authority Manager), using command setmqaut(h) on a UNIX box.