domainwidedelegation.comStart free

Use casesScheduling

Book meeting rooms for cross-team events with a service account

Automate meeting room booking across teams using a delegated service account, ensuring resource calendars are updated and conflicts are handled.

Who it is forIT and office managers coordinating meetings involving multiple teams or departments.
APIsCalendar API
Typical scopescalendar

The problem

When meetings span teams, room bookings are often missed or double-booked because manual coordination is unreliable and resource calendars are not automatically managed across groups.

How it works

  1. Detect or receive a new cross-team event requiring a room.
  2. Query the resource calendars for room availability.
  3. Book the selected room directly via the service account with domain-wide delegation.
  4. Update the event with the room as an attendee and notify organisers.

What changes

Rooms are reserved correctly for multi-team meetings, and conflicts or missed reservations are avoided without manual intervention.

The trap in this one. If the service account attempts to add a room to an event before the resource calendar's ACLs have propagated, the booking API may accept the request but not actually reserve the room—no error is returned, and the room appears available to others. Always verify the room's attendee status after booking, and implement a post-write check to confirm the reservation is reflected in the resource calendar.

Questions people ask

What if the room is already booked?

The Calendar API returns a conflict response when a room is busy. Handle this by offering alternative rooms or proposing a different time.

Can the service account book rooms in secondary domains?

Only if it has domain-wide delegation and the resource calendars are shared to the service account's domain. Otherwise, the booking will silently fail.

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

Related use cases

Build a real picture of team availability

Read calendars across the domain to answer who is free, who is overloaded and where the week actually went.

Turn a finished meeting into follow-up automatically

Detect that a meeting happened, pull the notes, and draft the follow-up before anyone opens their laptop.

Turn a booking into a record everywhere it matters

When a meeting is booked, create the record, the folder and the confirmation in one pass.