The message prefix indicates the Language Environment component that generated the message. The message prefix is the first three characters of the message number and is also the facility ID in the condition token. See the following table for more information about Language Environment runtime messages.
| Message Prefix | Language Environment Component |
|---|---|
| CEE | Common run time |
| EDC | C/C++ run time |
| FOR | Fortran run time |
| IBM® | PL/I run time |
| IGZ | COBOL run time |
The messages for the various components can be found in z/OS Language Environment Runtime Messages and in z/OS MVS Diagnosis: Reference.