CICS termination manager parameters

All task-related user exit programs that have been enabled with the SHUTDOWN option of the EXEC CICS ENABLE command, and started, are invoked at CICS® termination to allow them to do the clean-up processing that is appropriate to the type of termination. At CICS termination, the address of a one-byte termination code is passed to your exit program.

The code may consist of any of the following bit settings:
UERTCORD
(X'80') CICS orderly shutdown
UERTCIMM
(X'40') CICS immediate shutdown
UERTCABY
(X'20') CICS abend, retry possible, TCBs dispatchable
UERTCABN
(X'10') CICS abend, retry not possible, TCBs dispatchable
UERTOPCA
(X'01') CICS abend, retry not possible, TCBs not dispatchable.

For further information about shutdown TRUEs, see Coding a program to be invoked at CICS termination.