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Use cases → Admin and governance

Enforce guest invite policy on calendar events

Automatically review and adjust Google Calendar event guest lists to prevent unauthorised external attendees in line with policy.

Who it is forWorkspace administrators responsible for controlling external access to internal meetings.
APIsCalendar API, Admin SDK
Typical scopescalendar, admin.directory.user.readonly

The problem

Users often invite external guests to events without realising it breaches internal policy, leading to data exposure and compliance risk. Manual review is not feasible at scale, and native controls are coarse or unenforced in practice.

How it works

  1. Monitor user calendars for new or updated events via push notifications.
  2. Fetch the event guest lists and compare attendees against allowed domains.
  3. Remove unauthorised guests and optionally notify organisers of the enforcement action.
  4. Log actions for audit and compliance review.

What changes

Events violating the guest policy are automatically corrected, and organisers are kept informed. Administrators gain visibility and control without manual policing.

The trap in this one. Calendar API push notifications arrive out of order or are occasionally dropped, so enforcement can miss a policy-violating guest if the latest update is not processed. Always reconcile state using a sync token, not just event notifications, or you will leave non-compliant guests on events after a missed webhook.

Questions people ask

Can the organiser re-add a removed guest?

Yes, unless you continuously monitor and enforce. Periodic reconciliation is needed because users can undo automated removals.

What about group or resource invites?

Expand groups using the Admin SDK to check their actual members; resources should be whitelisted explicitly if needed.

Want this built?

This is a pattern we run in production. We will set up the delegation and build this on top of it — $500 per hour, most of it working the same day.

Talk to us Or read the setup guide

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