| Parameter | Reference | Type | Length | Default | Optional | Text |
|---|---|---|---|---|---|---|
| CALLBACK_CHECK | RSTXP-TDOBJECT | C | 30 | SPACE | Name of a module integrated into navigation | |
| CALLBACK_PFKEY | RSTXP-TDOBJECT | C | 30 | SPACE | Name of a module integrated into navigation | |
| CALLBACK_PROGRAM | TRDIR-NAME | C | 40 | SPACE | Name of a module integrated into navigation | |
| CALLBACK_SAVE | RSTXP-TDOBJECT | C | 30 | SPACE | Name of a module integrated into navigation | |
| CALLBACK_USERCOM | RSTXP-TDOBJECT | C | 30 | SPACE | Name of a module integrated into navigation |