title: How MCA user id authorizes a client user id using MQ Server connection channels
body: <p>I have a question on how the MCA user id we add while creating a WebSphere MQ Server Connection channel actually authorizes a client user id configured in an MQ client Application.
  For e.g I have a domain user account servicemq01@domain added as MCA user id for a Server connection channel APP1.SVRCONN.01. I have created a user group mqi_App1@server and added the servicemq01@domain user id into it. The mqi_App1 group is given required authorities to connect to the queue manager. Also the required authorities are added at the queue level for mqi_App1 group.</p>
  
  <p>Now the client Application App1 has a userid clientapp01@domain with which it runs. The client Application is trying to connect to MQ server using channel APP1.SVRCONN.01.  My question is does both the clientapp01@domain and servicemq01@domain needs to match for the MQ Server connection channel to work??      </p>