7. Writing Field-developed Applications › 7.6 MSI Unit Level Parameters › 7.6.3 Original System Id Assignment (fdaSYSID)

7.6.3 Original System Id Assignment (fdaSYSID)

The data element ORGSYSID is used by CA MICS to identify the
originating system of the data.  The fdaSYSID exit is used
for specialized assignment of ORGSYSID.  For example, many
data sources contain ORGSYSIDs up to 256 characters.  Since
CA MICS only supports four-byte ORGSYSIDs, this exit can be
used by the installation to recode extra-long ORGSYSIDs to
four bytes.  Another use of fdaSYSID is to assign an ORGSYSID
when the input data does not provide one.

fdaSYSID is invoked after COMMONEXIT statements.