Office 365 App Password Change. If you don't want users to have to change passwords, uncheck the box next to set user passwords to expire after a number of days. Select settings settings icon > change password.
Select submit to finish and change your password. Follow the instructions on the change password page. Select add method, choose app password from the dropdown list, and then click add.
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How to add customized help desk information to office 365 help pane; In a web browser, sign in to outlook web app using the url provided by the person who manages email for your organization. The even quicker fix i have is. Sign in to microsoft 365 operated by 21vianet with your user id.