IBM Mainframe Forum

Would like to know the reasons for Map fail error?
Heard that MDT for alteast one field should be set ON in the map definition to avoid this error? is it true

Hi Satishmf,
Mapfail can occur because of the following reasons.

*CICS Receive Map did not receive any data from map because
a) User pressed a PA key (e.g. Page Up/Page down) instead of PF keys (F1 --> F12/SHIFT+F1 --> SHIFT+F12)
b) User pressed Clear key (Escape key)
c) User pressed a PF key or Enter key, but none of the lebelled map fields (fieldname+I in assembled map listing) had MDT on
(i.e. FSET not specified for any DFHMDF macro) and map did not have cursor location set (CURSORLOC = YES)
d) a CICS Receive Map was executed without any prior CICS Send Map in application program (note - CICS receive map can only receive
formatted data)

Yes it is true that you would need to set MDT for atleast one input fields ON to avoid MAPFAIL provided user presses a PF key/Enter key.

Thanks.

initialize before send map