How do I get attendees for room bookings?

Teis Jayaswal 0

Hi,

I am currently using the Microsoft Graphs API to fetch booking data for specific rooms. When using delegated access, I am able to use the /me/calendar/getSchedule endpoint to get the free/busy schedule for a specific room...but now I want to expand on this and get the attendees for bookings. I've considered the list events endpoint but this doesn't allow me to specify the room email in the request body like the endpoint to get free/busy schedule does. So, is there a way to get the attendee data?

Thanks.

1 answer

Andy David - MVP 142.2K Reputation points MVP

2024-04-22T21:08:31.5433333+00:00

Hi there

A number of scripts out there:

https://practical365.com/report-room-mailbox-statistics/

https://o365reports.com/2023/05/23/get-office-365-room-mailbox-usage-statistics-using-powershell/
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Teis Jayaswal 0 Reputation points

2024-04-23T19:24:13.2866667+00:00

Thanks for the response @Andy David - MVP

This is really helpful and I can get the events for the rooms when using application permissions, but I'd like to be able to get the room events with delegated permissions too. I've set the API permissions to user.read place.all.read calendars.read calendars.read.shared ...but I get 404 when I make an API call to the following endpoint: GET /users/{id | userPrincipalName}/calendar/events using the room email as the id.

When I make the same API call with application permission, it returns 200 with the room events...

Based on this guide here: https://learn.microsoft.com/en-us/graph/outlook-get-shared-events-calendars
It seems like it should be possible to get the events and calendars of rooms with delegated permissions...is there something I am missing?

Thanks again. Appreciate the support.
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