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Request Id: 0fd620f9-fedd-4f76-8660-2c8447454000

Rodney Allen 0 Reputation points
2026-05-18T11:58:22.7366667+00:00

Request Id: 0fd620f9-fedd-4f76-8660-2c8447454000

Correlation Id: b1741421-d918-4c69-9dae-fdcf56aa604a

Timestamp: 2026-05-18T11:49:16Z

Message: AADSTS50020: User account '******@yahoo.ca' from identity provider 'live.com' does not exist in tenant 'DALIAN MAPLE LEAF INTERNATIONAL SCHOOL' and cannot access the application '1fec8e78-bce4-4aaf-ab1b-5451cc387264'(Microsoft Teams) in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.

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  1. EmilyS726 236K Reputation points Independent Advisor
    2026-05-18T12:31:59.09+00:00

    Hello

    All the error message says is that you are logging into something that requires a work/school account and will not accept your personal account.

    So, what's the story/context here? Are you joining a Teams meeting invited by someone from that school? If so, they are not set up to accept personal account users. This is what you can do instead. Copy and paste the meeting link in the browser in incognito mode. When prompted to use the app, don't. Stick with the web. When prompted to sign in, also don't do it. This should allow you to join the meeting without signing into any account.

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  2. AI answer

    2026-05-18T11:58:32.8466667+00:00

    The error means the Yahoo account (a personal Microsoft account via live.com) is not part of the Microsoft Entra ID tenant “DALIAN MAPLE LEAF INTERNATIONAL SCHOOL,” so it cannot be used to sign in to that school’s Teams environment.

    To resolve this:

    1. Use the correct type of account
      • Sign out of all Microsoft accounts in the browser and Teams client.
      • Sign back in using the school-provided organizational account (usually something like ******@schooldomain.com), not the Yahoo/live.com personal account.
    2. If only a personal account is available
      • The school’s IT admin must either:
        • Create an organizational account for the user in the “DALIAN MAPLE LEAF INTERNATIONAL SCHOOL” tenant, or
        • Add the Yahoo/live.com account as a guest (external) user in that tenant and assign appropriate Teams/Office 365 licenses.
      • After that, sign out and sign back in with the same account that was added to the tenant.
    3. If the user is an admin trying to configure services
      • Ensure sign-in is done with an Azure AD account that actually exists in the school’s tenant. A personal Microsoft account alone cannot administer that tenant or access its Teams resources.

    If the problem persists after using the correct school account, contact the school’s IT administrator and provide the full error text, including the Request Id, Correlation Id, and Timestamp, so they can verify the account in their tenant and sign-in logs.

    References:

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