These error messages are prefaced by CIA080xx, with the exception of abend messages which are prefaced by CIA99999. You can dump the error log to determine the failed program name, transaction and CICS® response codes among other pertinent information. Use this information to assist in problem diagnosis.
At run time, the system normally intercepts abends by including an active EXEC CICS HANDLE ABEND command. The actual abend code is determined by issuing the EXEC CICS ASSIGN command with the ABCODE option. These abends are reported in the runtime environment with message identifier of CIA99999.