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Connect Google Calendar

You connect Google Calendar via account sign-in (OAuth) — no passwords stored with us. Available on all plans; after connecting, sync runs almost instantly (Google pushes changes to us directly).

  1. In the dashboard, open “Connect calendar” and choose “Google Calendar”.
  2. Pick the right account in the Google window and sign in.
  3. Confirm access — leave all checkboxes ticked. If you remove one, sync will fail later and you’ll have to reconnect.
  4. Back in Kalender Sync: in the “Select Calendars” dialog, tick the calendars you want to use. You can change the selection any time in the settings.

Which permissions are requested — and why?

Section titled “Which permissions are requested — and why?”
PermissionWhat for
Read calendars & eventsDetect your source events and pick up changes
Write calendars & eventsCreate, update and clean up blocker events in the target calendar
Basic profile (email)Match the account to your Kalender Sync account

Write access is required even though your original events are never modified — Kalender Sync only manages its own blockers. The full breakdown for IT and privacy teams: Permissions in detail.

  • Wrong account preselected — if you’re signed into several Google accounts, double-check the account picker. When in doubt, use a private browser window.
  • Google Workspace: “App blocked” — your Workspace admin restricts third-party apps. The ways out: My organisation blocks the connection.
  • “Please reconnect” after a few days — access expired or was revoked: Connection expired.

How to remove calendars and revoke access (and what happens to dependent syncs): Remove calendars & revoke access. You can additionally revoke access at Google any time: myaccount.google.com/connections.