Calendar Sync
One-Way Sync
How one-way calendar sync works in Calendox.
A one-way sync copies events from a source calendar to a target calendar. Changes in the source are reflected in the target, but changes made directly in the target are not propagated back.
Use cases
- Mirror your work Outlook calendar into your personal Google Calendar so you can see work events without switching apps.
- Share a team calendar's events into individual member calendars (read-only view).
- Maintain a backup copy of one calendar in another provider.
How it works
- On sync creation, Calendox performs an initial copy of all existing events from source to target.
- Calendox registers a webhook with the source calendar's provider.
- When an event is created, updated, or deleted in the source, the provider notifies Calendox within seconds, and Calendox applies the change to the target.

Event handling
| Source action | Target result |
|---|---|
| Create event | Event copied to target |
| Edit event | Copied event updated in target |
| Delete event | Copied event removed from target |
| Create recurring series | Series copied to target |
Changes made directly in the target calendar are not touched by Calendox — they remain as-is until the source event is modified.
Limitations
- One-way sync requires the source calendar to support webhook notifications (Google Calendar and Microsoft Outlook both do).
- Deleted events in the target that were originally synced from the source are not re-created unless the source event is modified.