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Use cases → Scheduling

Route calendar invites for approval via a group

Use a delegated service account to intercept, review, and approve calendar invitations sent to sensitive team addresses before they reach calendars.

Who it is forIT and governance teams managing executive or sensitive group calendars.
APIsCalendar API, Admin SDK
Typical scopescalendar, admin.directory.group.readonly

The problem

Sensitive or high-profile group calendars often receive unwanted or inappropriate invitations, which can distract or leak information if accepted automatically.

How it works

  1. Configure a delegated service account with access to the target group's calendar.
  2. Monitor new invitation events and forward them to an approval workflow (e.g., via email or a dashboard).
  3. On approval, update the event RSVP to accept and notify the group members.
  4. On rejection, decline the event and optionally notify the requester.

What changes

Group calendars show only approved events, reducing noise and risk of accidental exposure, while keeping the approval process auditable.

The trap in this one. When a group address is used as a calendar guest, Google Calendar does not immediately create an event on all group members' calendars—there is a delay while group membership propagates and invitations are fanned out. If the service account acts before this propagation is complete, it may process an incomplete or empty guest list, resulting in approvals that never reach all intended recipients. Always poll for group expansion and verify recipients before updating event status.

Questions people ask

Can this pattern work for external invitations?

Yes, but be aware that external invitations may arrive at different times due to sender infrastructure, increasing the risk of race conditions in the approval workflow.

How can we ensure all group members see the approved event?

After approval, re-fetch the event to confirm that all expected guests are present before updating the status; if not, wait and retry.

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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