Providing OMVS segments for FM/CICS users

The CICS® region and each individual FM/CICS user must have a user ID defined to z/OS® with an OMVS segment. This allows usage of TCP/IP by FM/CICS.

If an OMVS segment is not defined, message FMNCA021 may be issued with the INITAPI function when a user attempts to run the FM/CICS transaction.