How to sync meetings
One of Attio’s most powerful features is its real-time email and calendar sync. When a user connects their Gmail or Outlook account, Attio will automatically and continuously keep the user’s emails and meetings in sync. Meetings are written using the create a meeting endpoint (POST /v2/meetings). This endpoint
always creates a new meeting — it does not look up, match, or update existing meetings, and it
does not de-duplicate against meetings that Attio’s own sync engine may have already created from a
connected Gmail or Outlook calendar.
Avoiding duplicate meetings
Because the endpoint creates a new meeting on every call, calling it repeatedly — or writing a meeting that Attio has also synced from a connected calendar — can result in duplicates. If you want to ensure consistent behaviour, check for a matching meeting first rather than blindly creating one. You can do this by listing meetings (GET /v2/meetings) covering the relevant time frame and de-duplicating with your own fuzzy matching
logic — for example, by matching on a combination of the meeting’s title, start time, and organizer.
If you find a suitable match, reuse that meeting instead of creating a new one.