How to change your Microsoft 365 email address/user account display name

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Business email addresses often include the name of the person in charge.

While it is easy to remember and manage, when you change your workplace name due to marriage, etc., you will also have to change your email address and sender name.

In this article, we will explain how to change the display name and email address registered in Microsoft 365.

[Personal] Change your Microsoft account information

If you’re on a Microsoft 365 individual plan, you can change your information from your Microsoft account profile page.

First, sign in to your Microsoft account page ( ).

Select the “Your Info” tab in the top menu to view your account information.

E-mail address change

How to change the email address used to sign in to your Microsoft account.

  1. Click Edit Account Information.
  2. Click Add Email.
  3. If creating a new email address, enter the desired address. If you want to add another email address that you have already acquired to Microsoft365, enter the email address.
  4. Click Add Alias.
  5. If you add an email address that has already been obtained, authentication will be performed from the email that arrived at that address.
  6. Click Make Primary on the newly added email address.

You can use both addresses when signing in to your Microsoft account, unless you delete your old address.

If you don’t want the old address, click Delete to remove it from your Microsoft account.

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change name

  1. Click Edit Name in the field where your full name is displayed.
  2. Enter your first and last name and perform CAPTCHA authentication.
  3. Click Save.

change phone number

  1. Click Edit Account Information.
  2. Click Add Phone Number, select a country code, and enter your phone number.
  3. Click Next and verify with the code sent to your phone number.
  4. After the new phone number has been added, click Remove for the old phone number.

Steps to set your email address in Outlook

If you want to change the email address you send and receive in the Outlook desktop app, add your new email address to the app.

Add email address

  1. Start Outlook and click File.
  2. Click the Account Settings button and select Account Settings.
  3. Select the Mail tab.
  4. Click New.
  5. Enter your new email address and click Connect.
  6. When the email address is added, click “Done” and restart Outlook to reflect the settings.

If you no longer need your old email address, go to the Email tab of your Account Settings, select your old email address, and click Remove to remove it from the list.

Change sender name

How to change the sender name that is displayed to the other party.

  1. Display the Mail tab of Account Settings in Outlook.
  2. Select the email address you want to change the sender name from and click “Change”.
  3. Enter the name you want to appear as the sender in “My name” and click “Next”.
  4. Click “Finish” and restart Outlook for the settings to take effect.

[Corporate] Change email address in Microsoft 365 admin center

Only administrators can change user information for corporate licenses.

Please log in to the Microsoft 365 admin center ( ) with an administrator account and make settings.

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Note that it may take some time for the settings to be reflected.

E-mail address change

This is the procedure for changing the address used for sending and receiving emails.

  1. Click Users > Active Users in the Microsoft 365 admin center.
  2. Select the user whose email address you want to change.
  3. Click Manage Usernames and Email Addresses on the Account tab.
  4. Enter your username in the Alias ​​field, select your domain, and click Add.
  5. Click “…” on the added email address and select “Set as Primary”.
  6. Click Save Changes.

In the case of a corporate license, even if the email address is changed, the user’s mailbox will be taken over, so there is no need to migrate past email data.

Setting the new address as primary keeps the old address as a secondary address.

You can continue to receive emails to your old address, so even if someone who doesn’t know that your name or email address has changed sends you an email to your old address, you won’t get an error.

For this reason, Microsoft recommends not deleting the old address but leaving it as a secondary.

Change display name

This is how to change the display name displayed in the address book and Teams.

  1. Select the desired user in the Microsoft 365 admin center and view the Account tab.
  2. Click Manage Contact Information.
  3. Edit your first name, last name, and display name and click Save Changes.

Change login user name

You can change the username you use when signing in to Microsoft 365 by following these steps:

  1. Select the desired user in the Microsoft 365 admin center and view the Account tab.
  2. Click Manage Usernames.
  3. Edit your username and domain and click Save Changes.

For those who are considering introducing Microsoft 365

With the end of support for Office 2019, there may be some people who are wondering about replacing Office licenses.

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If you’re going to buy from now on, Microsoft 365 is definitely recommended.

“Microsoft 365” is a solution that provides Microsoft services such as Office apps on a subscription basis.

The contract benefits of Mictosoft 365 are as follows.

  • Cloud storage and communication tools are bundled and advantageous
  • Get the latest version of Office
  • Can be used for as long as you want
  • Can be installed on multiple devices
  • Easy license management

If you are considering introducing Microsoft 365, please consult with NEC Networks & System Integration.