| Busy slot in the main calendar | Slot is unavailable | | |
| Busy slot in every additional checked calendar | Slot is unavailable; if unsupported, hold the link and confirm manually | | |
| My own booking | Exactly one appointment and confirmation | | |
| Second attempt at the same slot | That slot is no longer offered | | |
| Lead time and buffers | Availability follows the chosen settings | | |
| Different time zone | Both sides compare the same instant in their confirmations | | |
| Cancel my own booking | Cancellation confirmation arrives and the slot is free | | |
| Private window | No internal notes; link and meeting method work | | |