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Why can't I add my phone number to my microsoft account?

Wyatt Kafitz 10 Reputation points
2025-07-11T00:53:41.94+00:00

When I try to add my phone number it sends me a verification code, then once I enter the code it asks me to input my account password, and once I do that it give me the error message "alias cant be added"

Microsoft Edge | Profile, sync, and sign in | Windows 10

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  1. Darhyl Amizola 37,985 Reputation points Independent Advisor
    2025-07-11T02:06:23.7566667+00:00

    Hey Wyatt!

    Nice to meet you! I'm Darhyl, an Independent Advisor.

    Based on your description, there may be an issue with the phone number you are trying to add. Kindly try to perform these steps for us to isolate the case:

    1. Clearing the cache and cookies of your browser.

    To clear your browser cache and cookies in Microsoft Edge, go to Settings > Privacy > Clear browsing data and select Ctrl+Shift+Del. You can also type "edge://settings/clearbrowserdata" in your address bar to access this function.

    1. Disabling extensions / going incognito or in-private browsing.

    In Microsoft Edge, select Extensions located to the right of your browser address bar, then select Manage Extensions.

    Select the toggle next to the extension you want to turn off.

    1. Changing browsers. (Google Chrome, Microsoft Edge, Safari etc.)
    2. Disconnect from VPN or Proxy server.

    Open Settings and click/tap on the Network & Internet icon.

    Click/tap on VPN on the left side, click/tap on the connected VPN (ex: "MPN") on the right side you want to disconnect, and click/tap on the Disconnect button.

    When finished, you can close Settings.

    1. Try using a different phone number, as your current phone number may have been used on another account already. (It may have been associated and was removed from an account before.)

    If the issue persists, I highly recommend you contact Microsoft Support for further assistance, as they have the tools and resources to properly investigate this case. You may contact them using the link below:

    https://support.microsoft.com/home/contact?SourceApp=smc2&ContactUsExperienceEntryPointAssetId=S.HP.SmcContactUsLanding

    Type "Can't add alias" > Contact Support > Microsoft 365 and Office > Manage account security > Confirm > Chat with a support agent in your web browser

    Phone Support: https://support.microsoft.com/topic/customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2

    Thank you for your kindness and understanding! Please feel free to let me know if you need anything else.

    Best regards,

    Darhyl

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