Error Access Denied while use the microsoft graph list calendar view

Question

I give both delegated and application permission in calendar.read,calendar.write

error pass when i am using "v1.0/me" end point, App registration is done by the admin account, i can access me/user, me/calendars/event, /me/calendars but i can't access list calendar view

Answer 1

Hello poovarasan d

Thanks for reaching out!

I'm able to replicate this issue using my test tenant, and I have resolved this with below approach.

I removed & revoked the Calendars.ReadBasic delegated permission from the registered application (in Azure) and granted only the required (or least privileged to most privileged) delegated permissions to execute List CalendarView Graph API [Calendar.Read, Calendar.ReadWrite].

Additionally, as a best practice, I would recommend you to not use time window of more than one week while using CalendarView. This is because CalendarView API does a lot of processing in the backend before providing the results.

Hope this helps.

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