Providing OMVS segments for ZDT/CICS users
The CICS® region and each individual ZDT/CICS user must have a user ID defined to z/OS® with an OMVS segment. This allows usage of TCP/IP by ZDT/CICS.
If an OMVS segment is not defined,
message HFMCA021 may be issued
with the INITAPI
function when a user attempts to run
the ZDT/CICS transaction.