This can be caused by an inadvertent change in the #UCFCICS macro parameters.
Release : 19.0 or any supported release
Component : IDMS UCF
If all parameters in #UCFCICS remain the same in an upgrade, no problems should occur. However, sometimes in an upgrade things are overlooked and one or more of these parameters get changed unintentionally.
In particular, if a site has EXIT27 in place that will change the CICS USERID, then the CV must run with the UCFCICS parm USERCHK=NO. If this is somehow changed to USERCHK=YES in the course of an upgrade, then the S006 can occur. This is because running with USERCHK=YES is incompatible with using an EXIT27 to change CICS Userids; these cannot both be implemented at the same time in the same environment.
If it is necessary to run with USERCHK=YES for some reason, and EXIT27 was previously in place, another option may be to use the USERIDXIT instead of the EXIT27. Here's what t
Details on the #UCFCICS macro, including the USERCHK parameter, can be found here:
Details about numbered exits, including EXIT27, can be found here: