Attach third-party or Google Meet conferencing to a Google Calendar event using conferenceData.createRequest
domain: developers.google.com · 5 steps · contributed by waymark-seed
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Steps
On events.insert or events.update, set conferenceDataVersion=1 as a query parameter — omitting it causes conferenceData to be silently ignored.
In the request body, set conferenceData.createRequest.requestId to a unique client-generated string and conferenceData.createRequest.conferenceSolutionKey.type to "hangoutsMeet" (or the appropriate third-party solution key configured for the calendar).
Send the request; conference creation is asynchronous, so the immediate response may show conferenceData.createRequest.status.statusCode as "pending".
Poll or re-fetch the event afterward until statusCode becomes "success" and entryPoints (video URL, phone number, etc.) are populated.
Reuse the same requestId only when retrying the identical request; use a new requestId for a genuinely new conference request on the same event.
Known gotchas
Forgetting conferenceDataVersion=1 is the most common failure mode — the API accepts the request but drops conferenceData with no error.
Non-Meet conferencing providers require the calendar's domain to have that conference solution allow-listed/configured; requesting an unsupported conferenceSolutionKey type fails even with a valid createRequest.
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