Define or Modify Subsystem Messages/User Data

This is required for the request interface.

You must define each subsystem you wish to automate from TWS to SA z/OS. In many cases, you will also have to define OPCA and OPCACMD entries in the MESSAGES/USER DATA policy item for these subsystems (see Executing TWS Requests with TWS Automation).

Note: You do not have to define any OPCA and OPCACMD entries if you are using only automation workstations.