Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
If this is a personal Microsoft account and the code is going to a phone that is no longer available:
- Start signing in to the account.
- At the Verify your identity prompt, select I don't have any of these.
- Follow the prompts to replace the old security info.
- If all security info is being replaced, there is a 30-day wait before sign-in is available again.
If the password is also not known and there is no access to any security info, use the account recovery form after reviewing the guidance here: Help with the Microsoft account recovery form.
If access still exists to at least one current sign-in or verification method, add a new method first:
- Sign in to Advanced security options.
- Select Add a new way to sign in or verify.
- Confirm the new phone number or email with the code sent there.
- Remove the old phone number afterward.
Important: do not change all security info at the same time unless necessary, because the account may be restricted for 30 days.
If this is a work or school account using Microsoft Authenticator or MFA and the old phone was lost, the MFA settings must be reset by:
- another cloud services admin, or
- the organization’s Help desk / IT admin
After the reset, the account will be prompted to register new authentication methods again.
Microsoft support agents cannot send verification codes or directly change account details for protection reasons.
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