I am running into this issue when trying to sign in using an application I built. The problem that I am having is that it is working for all users except for 1 who keeps getting this AADSTS50011 error when he tries to link his outlook with our app.
I have double checked our Reply URI's and they are exactly the same as the request. I even looked at the persons who is having this issue computer, and read the URL in the browser, and it is also showing the correct reply URI. So I am not sure why it is not working.
I have also read a couple other threads regarding this same issue, and it does not look like they pertain to the issue that I am having.
