MFPLI04502E EXTERNAL name "external-name" has been defined more than once. Check for multiple entries with the same name, a variable with the same name as an ENTRY, or a variable initialized in more than one place.

EXTERNAL name "external-name" has been defined more than once.
Resolution:
Check for multiple entries with the same name, a variable with the same name as an ENTRY, or a variable initialized in more than one place.
Module:
DEFESD.PL1