User journals and autojournals are written to a general log stream defined to the MVS™ system logger.
You specify that you want autojournaling for VSAM files using the autojournaling options on the file resource definition in the CSD. For BDAM files, you specify the options on a file entry in the file control table.
You specify that you want terminal control autojournaling on the JOURNAL option of the profile resource definition referenced by your transaction definitions. These messages could be used to create audit trails.
Automatic journaling is used for user-defined purposes; for example, for an audit trail. Automatic journaling is not used for CICS recovery purposes.