Some customers logging in using Microsoft Social Login flow will be blocked and asked to relogin

Issue Summary

A subset of users who use Microsoft's Social Login will now need to use another method of login. These users will hit the error page below , when they use this login method :

Steps to Reproduce

1. Use the Login with Microsoft feature
2. Enter the user's Microsoft login and password

Expected Results

User should be able to proceed directly to their landing page at Atlassian , commonly https://start.atlassian.com

Actual Results

For now these subset of users will be forced to re-login using the Atlassian login flow. 

Workaround

Click the "Try logging in again" button

Use login password form. If the user does not have a password or know of one use the Reset Password link to set one https://id.atlassian.com/login/resetpassword

For users of Azure AD who do not have SAML configured there is no restricting on logging in with a username and password, social login with Microsoft is a convenience feature but is not enforced.

Notes

• As a result of the fix, you may hit into some small inconsistencies with the browser.
• Please clear your browser cache, reset your Atlassian Account password (https://id.atlassian.com/login/resetpassword) and try again. That should fix it.