How to Change Phone Number on Microsoft Authenticator App

Microsoft Authenticator is an app that ups your online security with two-factor authentication. Here, we will show you how to change your phone number on the app. Keep your contact info updated for uninterrupted access!

Here’s the process:

  1. Open Microsoft Authenticator.
  2. Tap the menu icon in the top-left corner.
  3. Select “Settings”.
  4. Choose the “Personal account” tab.
  5. Go to “Account settings,” then tap on “Phone number”.
  6. You will see your current number.
  7. Tap “Change phone number”.
  8. Enter your new number.
  9. Verify it with the code sent to you.

Be sure to have access to both your old & new device when changing your phone number. It’s best to remove accounts linked only to your old device first. Then, add them back with your new device.

John changed his phone number but forgot to update it in Microsoft Authenticator. His old phone suddenly malfunctioned. Fortunately, he was able to switch his number swiftly on his new device, keeping access to his accounts.

What is the Microsoft Authenticator App?

The Microsoft Authenticator App offers enhanced security for online accounts. It’s a two-factor authentication (2FA) app, adding an extra layer of protection.

Users can verify their identity when logging in. They get a unique code on their phone which they enter alongside their password.

This app has advantages over SMS-based 2FA methods. It removes the need for physical hardware tokens, as your phone is a digital security key. Also, biometric authentication like fingerprint/facial recognition offers increased security.

An interesting feature is that the Authenticator App supports multiple accounts from different providers. Users can have all their 2FA codes in one place, for easy use and improved security.

Why would you want to change your phone number on the Microsoft Authenticator App?

In this fast-paced digital world, you may need to change your phone number on the Microsoft Authenticator App. The reasons vary – as unique as the individuals who use the app. Let’s have a look at why you might require this change.

Security is one common reason. As tech evolves, hackers employ new methods to gain access to accounts. Updating your phone number can strengthen the protection around your Microsoft account.

Updating contact info is also valid. People switch service providers or move locations. Keeping your contact info current ensures efficient communication if any account-related issues arise.

Replacing damaged devices is another. Accidents happen and devices can suffer physical damage. Changing your number is necessary to continue using the secure authentication tool on a new device with no interruptions.

Transitioning between devices also requires a change. As tech advances, newer models enter the market. Updating phone number in the Microsoft Authenticator App settings is essential for synchronization and continuous access to accounts.

These points cover some of the main reasons. But there are others – such as a change in employment necessitating a different account, or privacy concerns due to personal circumstances. Controlling your contact details is vital for secure user experience.

Life changes – and so does the Microsoft Authenticator App. Released in 2016, it was designed to give an extra layer of security when logging into Microsoft accounts. Over time, its features have expanded and improved, giving users convenience and peace of mind.

As tech moves forward, it’s essential to modify authentication methods. Changing your phone number on the Microsoft Authenticator App is a step towards staying safe and having a smooth digital experience.

Step-by-step guide on how to change your phone number on the Microsoft Authenticator App

Changing your phone number in the Microsoft Authenticator App is easy. Here’s how to do it:

  1. Open the App on your device.
  2. Tap the three horizontal lines in the upper-left corner to open the menu.
  3. Select “Settings” from the menu.
  4. Tap “Phone number” under the “Account” section.
  5. Tap the option to change your phone number.
  6. Verify the new number and complete the process.

Note: Changing your number won’t affect any other settings or information. It’s important to keep your phone number up to date for added security. Not updating it could mean missing important notifications and compromising your accounts’ security. Do it now!

Troubleshooting tips if you encounter any issues during the process

Having trouble changing your phone number on the Microsoft Authenticator app? Here are a few helpful tips:

  • Check that your internet connection is stable.
  • Verify that you’ve entered the new phone number, including the country code, correctly.
  • Restart your device and launch the app again if it doesn’t detect your new phone number.
  • Be sure you have the latest version installed.
  • Try clearing the cache or reinstalling the app to troubleshoot any glitches.
  • Reach out to Microsoft support if nothing works.

Remember: Follow Microsoft’s instructions during the process. Provide correct info and follow security measures.

Pro Tip: Enable two-step verification and update account recovery options in the Microsoft Authenticator app for added security.


Changing your phone number on Microsoft Authenticator is straightforward! Here’s how:

  1. Open the app & go to Settings.
  2. Select “Add Account” then “Use an existing account”.
  3. Pick the account you want to update & tap “Change Phone Number”.
  4. Enter the new number & finish the verification.
  5. Save the changes & you’re done!

Remember, any accounts connected to the previous number must also be changed. Check each service’s website/app for instructions.

Pro Tip: Before changing the number, back up essential info linked to the account. This way, you won’t lose data during the switch.

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