MVS System Messages documents primarily describe messages that are issued to the system operator at the system console and system messages that are logged. These include:
- Operator messages issued by the BCP and DFSMS/MVS.
- Log messages issued by the BCP and DFSMS/MVS.
Some SYSOUT messages issued by the BCP and DFSMS/MVS. SYSOUT messages are issued by utilities that normally run in batch, such as SPZAP.
Batch job messages issued by the BCP. Messages issued by JES2 or JES3 for batch jobs are in the JES messages documents. For the most part, messages issued at interactive terminals (like TSO/E and CICS® terminals) are documented by the specific elements and products that support those terminals.