IBM SC33-1683-02 - Manual (Page 217)

Important
Notes:
1. Take care when coding a program to run at the XSRAB exit point. If your
exit program causes the system recovery program to be reentered (if, for
example, a program check occurs) then CICS terminates abnormally, with
a DFHSR06xx message.
2. The default return code is ‘UERCNOCA’. This ensures that the task
abends if the exit is in error.
3. There is no ‘UERCNORM’ return code at this exit point, because the exit is
invoked after a failure.
4. The exit should not set the return code ‘UERCPURG’.
system recovery program exit
Chapter 1. Global user exit programs 185