To update your mobile, phone, and alternate email address details, select Change.
In the Security info tab, select Add Method > Phone > Alternate Phone or Email to add details.
In the header, select your profile icon > My account > Security Info. The alternate email address is used for important notifications, such as resetting your admin password (not your computer admin password).īrowse to the Microsoft 365 admin center. Use the Security Info page to change your mobile phone number and alternate email address. To update your phone number and email address If you're looking for how to change your company's profile information, such as company name and address, company phone number, and technical contact information, see Change your organization's address, technical contact email, and other information.įor more information about changing user contact information or removing former employees, see Related content. This article explains how you, the admin, can change your business phone and email address in Microsoft 365.