Received message: REQUEST FAILED RC=012,RS=312,FB=00000000
The 312 means:
The RS of 312 indicates:
FUNCTION NOT COMPATIBLE WITH THE LIBRARY
REQUEST FAILED RC=rc,RS=rsn,FB=nnnnnn
The request (SCRATCH, PRIVATE, PROTECT, SYNC) failed with a return code of rc; and reason code of rsn. The return code and reason code combinations are in the LCS External Services Parameter List (LCSPL), mapped by IBM macro CBRLCSPL. This macro can be found in SYS1.MACLIB.
The recommendation is to follow up with IBM as the CA 1 code is working as it should. The device (IBM) is not allowing the change.