This is part of the larger task of customizing your z/OS environment.
The role of the WebSphere Business Integration Message Broker administrator includes customizing and configuring, running utilities, performing problem determination, and collecting diagnostic materials. People involved in these activities need WebSphere Business Integration Message Broker authorities. You must set up some security for WebSphere Business Integration Message Broker to work properly. The information that you need to do this is in Setting up z/OS security.