| Permission type | Least privileged permissions | Higher privileged permissions |
|---|---|---|
| Delegated (work or school account) | Calendars.ReadBasic | Calendars.Read, Calendars.ReadWrite |
| Delegated (personal Microsoft account) | Calendars.ReadBasic | Calendars.Read, Calendars.ReadWrite |
| Application | Calendars.ReadBasic | Calendars.Read, Calendars.ReadWrite |