The ON_ERROR command is used to transfer control to another command if an "error condition" is raised within a validation block.
For more information about the raising of the "error condition" inside a validation block refer to the ENDCHECK command.
An optional error message may be issued when the "error condition" is raised.
Also See
7.92.2 ON_ERROR Comments / Warnings
Required
ON_ERROR ----- GOTO --------- label --------------------------->
-----------------------------------------------------------------
>-- MSGTXT ------- *NONE -------------------------->
message text
>-- MSGID -------- *NONE -------------------------->
message identifier
>-- MSGF --------- DC@M01 . *LIBL ----------------->
message file . library name
>-- MSGDTA ------- substitution variables ---------|
|expandable group expression |
---------- 20 max ----------