This is edited from the source file that is processed by the MESSAGE utility and the (slightly modified) ADAM ERRGEN utility to generate the C (NBS_DIR:NBS_ERR.H) and Fortran (NBS_DIR:NBS_ERR.INC) versions of the error code INCLUDE files.
| Severity | Name | Description |
| Information | SECTIONEXISTED | Noticeboard already existed |
| Warning | TOOMANYDIMS | More dimensions than maximum allowed |
| TOOMANYBYTES | More bytes than maximum allowed | |
| BADOFFSET | Offset is less than zero | |
| BADOPTION | Illegal parameter / item name | |
| DATANOTSAVED | Data part of noticeboard not saved -- cannot restore it | |
| Error | DEFINING | Currently defining noticeboard contents |
| NOTDEFINING | Not currently defining noticeboard contents | |
| NILSID | NIL static ID | |
| NILID | NIL item ID | |
| PRIMITIVE | Item is primitive | |
| NOTPRIMITIVE | Item is not primitive | |
| ITEMNOTFOUND | Item does not exist | |
| SECTIONNOTFOUND | Noticeboard does not exist | |
| CANTOPEN | Can't open noticeboard definition file | |
| CANTWRITE | Can't write noticeboard definition file | |
| CANTREAD | Can't read noticeboard definition file | |
| NOTOWNER | Non-owner attempted to alter noticeboard | |
| TIMEOUT | Time out finding noticeboard or getting item value or shape | |
| DATASAVED | Data part of noticeboard saved -- cannot restore definition | |
| DATANOTRESTORED | Data was not restored from noticeboard file -- cannot save it | |
| HASIDS | Item / noticeboard has items derived from it -- cannot lose it | |
| NOTTOPLEVEL | Item is not top-level (ie not noticeboard) -- cannot lose it | |
| TOPLEVEL | Item is top-level (ie noticeboard) -- cannot lose it | |
| NEVERFOUND | Parent has no items derived from it -- cannot lose it | |
| Fatal | INITALLOCFAILED | Couldn't initialise storage allocator |
| NOMOREROOM | Couldn't get memory -- increase MAX_DEFN_SIZE if when defining | |
| BADVERSION | Noticeboard or definition file had wrong version | |
| IMPOSSIBLE | Something impossible happened -- system error |
NBS The Noticeboard System