Solved: REST API is not yet supported for this mailbox.

Hello,

I have a problem. I want to reserve a meeting room by Powerapps. Actually I did it using Graph API. After this action, some users can not enter to the application. When they try to open the application, they are faced with an error such as the following. What I need to do?

I guess it is related to Excange online but I hope there is a one solution way.

REST API is not yet supported for this mailbox. This error can occur for sandbox (test) accounts or for accounts that are on a dedicated (on-premise) mail server.

Categories:

Mobile App

General Questions

Connecting to Data