Exception conditions

As with all CICS commands, FEPI commands might produce exception conditions that you can check using the RESP option, or capture using HANDLE CONDITION. Most FEPI command errors return INVREQ. The particular error in each case is uniquely identified by the RESP2 value.

All the FEPI exception conditions and RESP2 values are listed in FEPI system programming reference. There are copy books that contain declarations for the RESP2 values:

DFHSZAPA for Assembler language
DFHSZAPO for COBOL
DFHSZAPP for PL/I
DFHSZAPC for C.

For the system programming commands, errors are reported as unexpected events to the CSZX or other transient data queue, and to the FEPI message log CSZL, as well as by exception conditions on the command.

If there is an error, the command does nothing, and output values are not changed. Some commands operate on a list of resources; an error in one resource does not prevent the command from operating on the other resources in the list.

You can use EDF and CECI to debug FEPI programs. Because FEPI commands can be quite long, you will probably find the NAME field of CECI useful.

All resource names used by FEPI are a fixed length of 8 characters; they must be padded with blanks if necessary. For commands that use lists, make sure that the list field is a multiple of 8 characters long and that the number option is set correctly; neither the translator nor CECI checks these and unpredictable results could occur if they are wrong.