Graph API: unable to create subscription for events.

Question

I am trying to create subscription with endpoint

The postman returned 403 Forbidden, I checked the application, I have the calendars.read, calendars.readwrite permission. For the "resource", I tried multiple, including "me/events", "/me/events", "users/{id}/events" etc...

I also checked the JWT token, the scp shows it has calendar permissions too.

Anyone know why API returns 403 forbidden? Thanks for any help in advance.

Answer 1

Hi @Paul L ,

Thanks for reaching out!

As per the documentation, Microsoft Graph subscriptions will not support write access permissions when only read access permissions are needed.

• To create subscriptions for me/events only "Calendars.Read" is needed.
• Do not use the Outlook sharing permissions (Contacts.Read.Shared, Calendars.Read.Shared, Mail.Read.Shared, and their read/write counterparts), as they do not support subscribing to change notifications on items in shared or delegated folders.

Reference document: Permissions

Hope this helps.

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