Authorities required for CICS region user IDs

The CICS control program runs under the CICS region user ID.

Therefore, this user ID needs access to all the resources that CICS itself must use. There are two types of these resources:
  1. Resources external to CICS, such as data sets, the spool system, and the SNA network.
  2. Resources internal to CICS, such as system transactions and auxiliary user IDs.