I thought it might give you some ideas. Anyway, I belive that you have to add your app’s test url (run mode) in the Microsoft API setup (Redirect URLs?) and then it will work.
Okay - everything is working fine now… But I’m still struggeling with external users.
For users within my org. its working fine - SINCE! I granted access via org admin as you can see in the screenshot.
But with external users I’ll get the following error.
The service Microsoft just returned an error (HTTP 403). Please contact the plugin author directly for feedback. Raw error:
{"error":{"code":"Authorization_RequestDenied","message":"Insufficient privileges to complete the operation.","innerError":{"date":"2021-07-18T18:06:44","request-id":"b5c9bc9a-e4fe-4cdb-9c48-f4a11e35524a","client-request-id":"b5c9bc9a-e4fe-4cdb-9c48-f4a11e35524a"}}