Tenant issue

08 0 Reputation points
2026-08-17T07:29:53.39+00:00

Request Id: [Moderator note: Personally Identifiable Information removed]  Correlation Id: [Moderator note: Personally Identifiable Information removed]  Timestamp: 2026-08-17T04:26:50Z  Message: AADSTS50020: User account '[Moderator note: Personally Identifiable Information removed] @radiance.com.my' from identity provider '[Moderator note: Personally Identifiable Information removed] does not exist in tenant '[Moderator note: Personally Identifiable Information removed]' and cannot access the application '[Moderator note: Personally Identifiable Information removed]'(Microsoft Office) 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.

 

Microsoft 365 and Office | Subscription, account, billing | For business | Windows
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  1. Roebe Ta 265 Reputation points Independent Advisor
    2026-08-17T08:05:27.9933333+00:00

    Hello @08,

    Based on the error provided, AADSTS50020 indicates that the account does not exist in the Microsoft Entra ID (Azure AD) tenant and therefore cannot access Microsoft Office resources in that tenant. The error message also indicates that the account must be added as an external (guest) user before access can be granted.

    To better understand the situation, could you please confirm the following:

    • Is the @radiance.com.my account expected to have access to the KIN FEI CHONG Microsoft 365 tenant?
    • Has this account successfully accessed Microsoft 365 services within the KIN FEI CHONG tenant in the past?
    • Is this account intended to be a member user of the tenant or an external (guest) user?
    • Do you have access to another administrator account that can sign in to the KIN FEI CHONG tenant?
    • Does the issue occur across all Microsoft 365 applications, or is it limited to specific applications?
    • Are there multiple Microsoft accounts (work, school, or personal) currently signed in on the affected device, browser, or Office application?

    As an initial test, please try the following:

    • Open an InPrivate/Incognito browser window.
    • Navigate to https://portal.office.com.
    • Sign in using the account that should have access to the KIN FEI CHONG tenant.
    • Check whether the same error occurs.

    If your account is configured as a guest user, please check whether you have received an invitation email from the KIN FEI CHONG tenant. If so, please accept the invitation and complete the redemption process before attempting to sign in again.

    Since this issue is related to a specific Microsoft 365 tenant, it would also be helpful to contact the Microsoft 365 Administrator for the KIN FEI CHONG tenant. They can verify whether the account exists in the tenant, has been invited as a guest user, and has the appropriate licenses and permissions assigned.

    If you are unsure who your Microsoft 365 Administrator is, please refer to the following article: How can I find my Microsoft 365 admin? - Microsoft Support   

    I look forward to your response and will be happy to assist further based on the information provided.

    Kind regards,

    Note: Please follow the steps in the forum documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. AI answer

    2026-08-17T07:30:09.28+00:00

    AADSTS50020 means the signed-in account is not a member of the target tenant and cannot access Microsoft Office in that tenant.

    Use one of these supported fixes:

    1. Sign out of Microsoft 365 and sign in with an account that belongs to the KIN FEI CHONG tenant.
    2. If that radiance.com.my account must be used, a tenant administrator for KIN FEI CHONG must add that account as an external guest user first.
    3. After the guest invitation is accepted, try the sign-in again.
    4. If the wrong account keeps being selected, sign out of Microsoft 365 apps and the browser session, then clear cached sign-in state and retry with the intended work or school account.

    If this is an application sign-in flow that was configured internally, also verify these tenant/app conditions:

    1. The app is not configured as single-tenant if users from other organizations are expected to sign in.
    2. For app registrations, check App registrations > select the app > Manifest > signInAudience.
    3. If cross-tenant sign-in is expected, the authentication endpoint must match the app type:
      • Multitenant apps: https://login.microsoftonline.com/organizations
      • Multitenant and personal accounts: https://login.microsoftonline.com/common
      • Personal accounts only: https://login.microsoftonline.com/consumers
    4. If the app registration was created with the wrong audience, it must be re-created with the correct account type because signInAudience cannot currently be changed in the manifest.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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