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Outlook Calendar Sync
Keep your Core calendar and your Outlook calendar in step.
This optional module connects the included Core calendar to Microsoft 365. It requires Microsoft365Connector and a linked active mailbox. It does not require Outlook Email or Account Management.
An administrator chooses the organization-wide mode under Settings → Outlook Calendar Sync:
| Mode | Behavior |
|---|---|
| Off | No Outlook calendar requests. Core remains available. |
| Core → Outlook | Publish events you organize in Core and their changes or cancellations. |
| Two-way | Also import private Outlook appointments and apply Outlook changes to exported personal Core events. |
In the web Calendar, enable your own Outlook sync, then use Sync now when needed. The background scheduler otherwise checks enabled connections every five minutes. Initial synchronization covers the previous month and the next seven months, and advances monthly. Recurring Core occurrences are published as separate appointments in that window.
Imported appointments are read-only in Core and private to you. Module-owned events remain controlled by the originating module. Core RSVP actions are local; handle Outlook invitation responses in Outlook.
When both sides change an event, review the conflict in Calendar. Use Core publishes the current Core version. Use Outlook applies the current Outlook version to a personal event in two-way mode; it is unavailable for module-owned events. Disabling a module stops its sync operations and does not erase remote appointments.
For Teams links, the administrator enables Teams meetings and the organizer requests an online meeting on the Core event. The linked Microsoft account must support Teams meetings. A successful sync supplies the join link.
If sync fails, check the linked account, saved connection, mailbox and calendar permissions, then retry. Turning sync off preserves local events and existing remote copies.