Trying to read from another User's Calendar using Microsoft Graph.
Using the following GET in Graph Explorer, I get an HTTP 503 error returned:
https://graph.microsoft.com/v1.0/users/anotherUser@myCompany.com/events
Weird thing is that I can run this against myself and it lists my events as expected:
https://graph.microsoft.com/v1.0/users/myEmail@myCompany.com/events
I suspected it was a permissions issue, however I have checked and anotherUser@mycompany.com has full access delegated powers to myEmail@myCompany.com.
Any ideas?