ESF Manager generates various log messages regarding errors, warnings, and successful completion of infrequent activities (such as loading and initializing an ESM Module). These messages are sent to an environment-specific logging facility, such as the CAS Console Log and the MFDS Journal. (See saf-env.c for more information on ESF Manager environments.)
Each ESF log message has:
| Manager Interface | Messages 0-99 |
| ESF API Processing | Messages 100-199 |
| ESM Module Interface | Messages 200-299 |
| Environment Support | Messages 300-399 |
| Cache | Messages 400-499 |
| User Exit Processing | Messages 500-599 |
| Auditing | Messages 600-699 |
| ESM Modules | Messages 1000-1999 |
| Temporary | Messages 2000-2999 |