can the Azure AD account and MS account invited by guest registration of Azure AD B2C be authenticated?

Necoms 121 Reputation points
2021-07-01T05:15:01.363+00:00

As the title suggests, can the Azure AD account and MS account invited by guest registration of Azure AD B2C be authenticated?

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.
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  1. AmanpreetSingh-MSFT 56,301 Reputation points
    2021-07-01T06:38:15.383+00:00

    Hi @Necoms · Thank you for reaching out.

    Guest users in Azure AD B2C can only be used for the administration of the Azure AD B2C via the Azure Portal, you cannot use these accounts to sign-in to and access the web application(s) federated with B2C. In order to access these applications, the accounts should either be local account or from federated/social IDPs. User flows or Custom policies in B2C doesn't provide the mechanism to authenticate guest users to access the relying parties (federated web applications).

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