Authorities required for CICS region userids

The CICS control program runs under the CICS region userid. Therefore, this userid needs access to all the resources that CICS itself needs to use. There are two types of these resources:
  1. Resources external to CICS, such as data sets, the spool system, and the VTAM® network.
  2. Resources internal to CICS, such as system transactions and auxiliary userids.