Same issue that many other users have faced on a thread that has been closed.
When trying to sign in using Azure DevOps SSO, I get the error message below:
Sorry, but we couldn’t verify your authorization to access this page.
When we tried, here’s what the provider said:
You can’t sign up because login ‘username@company.com.au’ is already used by an existing user.
Apparently something has to be done on sonar’s end to fix this.
I’ve hidden your deleted post so non-admins can’t read it, but I extracted the juicy bits first, so I think we’re good. Now it’s just waiting for the folks with the right access to work through the queue to you.