User ID checking for WebSphere MQ resources during PLTPI and PLTSD

If a WebSphere MQ resource is accessed during the CICS PLTPI phase, the user ID passed to WebSphere MQ is blanks. If a WebSphere MQ resource is accessed during the CICS PLTSD phase, the user ID passed to WebSphere MQ is the user ID associated with the shutdown transaction.

If CKTI is started during the CICS PLTPI phase, the user ID of the CKTI task is the CICS sysidnt. This means that a user ID with the same name as the CICS sysidnt must be defined and given access to the required WebSphere MQ resources, for example, initiation queues.