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Understanding ATMCOMM Message Processing

ATMCOMM captures messages on the OPERATOR user ID by making an IUCV connection to the *MSG CP service. CA MIC uses ATMCOMM to capture and forward system operator messages.

The *MSG CP service classifies all messages into these types:

ATMCOMM always processes SCIF and SMSG, and can process any of the other message categories except VMCONIO. ATMCOMM never processes VMCONIO messages, which usually result from CMS-related activities on a z/VM user ID, such as output from the LISTFILE or TYPEFILE commands or a SAY clause in REXX. In addition, ATMCOMM never processes full screen input and output such as that produced by XEDIT.