relogin my credentials

Hi, @Harmanjot Kaur

Can you tell me a little more about the issue?

1. Where exactly do you see the message asking you to relogin your credentials: when opening Outlook.com, while reading emails, or in a separate pop-up window?
2. Also, what is the exact wording of the message, and does it show an error code?

Any additional info about the issue you can provide will be helpful in diagnosing and resolving the issue.

Thanks!