You can pass a return code back to the single-record, read-write process in the RWXP control block (offset +8) or in register 15. The exit can use the return code to reject records or to end the single record read-write process. These values are valid decimal return codes:

Return Code

Description

0

Process the current CKDS record.

4

Do not process the current CKDS record.

8

End processing.