I am trying t use https://outlook.office.com/api/beta/me/findmeetingtimes to find free time for attendees. The query seems to return correctly only for free time of the organizer, when i provide other email address in the attendee list, it returns AttendeesUnavailableOrUnknown error. I am able to see the free/busy time for other users via browser when i use the scheduling assistant but have not had any luck with the findmeetingtimes REST api.
Has anyone else had luck with this?
Thanks!