I have verified my own academic account in Microsoft Certification and got the successful message. I clicked "continue" and the webpage returned the below message:
We can’t access your Microsoft profile to schedule your exam. To resolve the issue, try these steps in this order and return to the exam page to schedule the exam:
Use Internet Explorer (version 9 or above) or Edge
Clear all cache and cookies
Use the InPrivate option in Internet Explorer or Edge
But I have used Microsoft Edge as my browser when I edited my certification profile.