Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi @Chiocca, Gianna,
From what you described, this is happening because your account is a school account, and the two‑step verification method is set to approve sign‑ins through the Outlook app that was installed on your old phone. Since that device is no longer available and there are no backup methods like SMS, email, or a different authenticator configured, you’ve unfortunately hit a situation that can’t be resolved through self‑service.
In cases like this, the best and fastest course of action is to contact your school’s IT department/administrator directly. They have the ability to help you regain access. Specifically, you can kindly ask them to reset or revoke your existing MFA methods and require you to re‑register MFA: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |…
This process only takes a few minutes on their side, and once it’s done, you’ll be prompted to set up two‑step verification again on your new phone the next time you sign in.
Please note that as a forum moderator, I do not have access to user accounts or the ability to reset MFA settings. Only your Microsoft 365 administrator has the necessary permissions to manage or reset your authentication methods. However, I’m here to guide you with the right steps so you can get the help you need as quickly as possible.
I truly hope you get your issue resolved swiftly. Thank you for understanding.
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