Login failure in Microsoft Entra ID for customers: "(500208) The domain is not a valid login domain for the account type."

Milan Kovacic 10 Reputation points


  1. Create Microsoft Entra ID for customers tenant
  2. Sign up for a new (customer) account
  3. When trying to login, the following error occurs: "(500208) The domain is not a valid login domain for the account type."
Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
2,759 questions
Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
20,535 questions
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  1. Navya 6,615 Reputation points Microsoft Vendor

    Hi@Milan Kovacic

    Thank you for posting this in Microsoft Q&A.

    I understand that you have encountered a login issue with Microsoft Entra ID for customers.

    AADSTS500208 is a general error caused when the user's account doesn't match the expected account type for the given tenant.

    1.Ensure that you are using the correct account to log in.

    Customer accounts supports to sign in with a local or social account.

    2.Confirm the application you are trying to log into.

    If a customer account is trying to log in with their Microsoft Entra ID, they might receive this error because customer accounts do not have access to tenant resources.

    Please refer below documents:

    Default user permissions in customer tenants
    Supported features in Microsoft Entra ID for customers

    Hope this helps. Do let us know if you any further queries.



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