Change your contact preferences for communications from Microsoft
Use the Contact preferences page to update your organizations's contact information, and choose the type of Office 365 product-related communications that you want to receive.
Read Update your admin phone number and email address in Office 365 for info on how to change your admin cellular phone number and email address.
If you're looking for how to change company profile information, such as organization's name and address, primary company phone number, and technical contact information, see Change your organization's address, technical contact email, and other information.
To update your information
In the admin center, select the Settings icon in the top right of the header.
Select Office 365 under Your app settings.
Select Security & privacy and then Contact preferences.
Choose the types of product-related communications you want to receive.
Type the business phone, business mobile phone, or business email where you want to receive these communications.
You can use any email address, including your Office 365 email address, to receive these communications. If you don't add an email address for contact preferences, your alternate email address (on the Personal info page) will be used.
For Office 365 Enterprise, Office 365 Business Premium, and Office 365 Business Essentials, when you first signed up as an admin for Office 365, depending on the country or region of the users in your organization, your users might be automatically signed up to receive product-related communications.
For Office 365 Small Business, depending on your country or region, you may have been automatically signed up to receive product-related communications. Admins are the only ones who can sign up for compliance notifications.
For answers to billing questions, see: