IMS Message Processing

SA z/OS can only automate messages that are issued via WTO. Most IMS system messages that are important are WTO'd, However, there are many IMS messages that are only logged internally.

Some of these messages may be useful in automation situations. To enable SA z/OS to process these messages, exits are installed to WTO messages that would not be WTO'd by IMS. In addition, your own user code might produce messages that are written to IMS. Some of these messages might be of interest in automation situations.

SA z/OS installs an exit to WTO these messages. SA z/OS installs an exit for the AOE Type 2 exit of IMS Control regions.

The messages that are WTO'd from this exit are defined in the MESSAGES/USER DATA policy for the subsystem or the subsystem class.