Federating Microsoft Entra ID (Single Tenant) with Okta for External Corporate Users Without Guest Invitation

Shazvi Faiz 0 Reputation points
2026-02-15T13:35:00.7533333+00:00

How can we federate Microsoft Entra ID (single-tenant), which acts as the home Identity Provider for our SPA and Web API that registered in Entra ID. we are using MSAL for authentication which redirects to user flow.  for one tenant need alow their user to access with Okta so that a specific customer’s corporate Okta users can access our subdomain-based multi-tenant application without guest invitations or user provisioning in Entra ID, while still having Entra ID issue the access tokens trusted by our application?  

What is the recommended approach to federate Okta with a single Entra ID tenant in this scenario?

  • Should this be implemented using: B2B Direct Federation? External Identities? OpenID Connect federation?
  • How does Entra ID issue tokens if authentication is delegated to Okta?

What are the required configuration steps on both Entra ID and Okta?

Any architectural guidance or official Microsoft documentation references would be appreciated.

Microsoft Security | Microsoft Entra | Microsoft Entra ID
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest

  1. AI answer

    2026-02-15T13:35:14.86+00:00

    To federate Microsoft Entra ID (single-tenant) with Okta for external corporate users without guest invitations, you can consider the following approaches:

    1. B2B Direct Federation: This option allows you to set up a direct federation with Okta, enabling users from the Okta environment to authenticate without needing to create guest accounts in Entra ID. This is suitable for scenarios where you want to allow external users to access your applications using their existing Okta credentials.
    2. External Identities: This approach is designed for scenarios where you want to control how users sign up and sign in. It can be used to allow external users from Okta to access your application without provisioning them in Entra ID.
    3. OpenID Connect Federation: This is another viable option that allows you to delegate authentication to Okta while still using Entra ID for issuing access tokens. This method would enable your application to trust the tokens issued by Entra ID after authenticating users through Okta.

    Token Issuance

    When authentication is delegated to Okta, Entra ID can still issue access tokens by using the OpenID Connect protocol. After a successful authentication through Okta, you can configure your application to accept tokens issued by Entra ID, which will validate the user's identity based on the Okta authentication.

    Required Configuration Steps

    1. In Microsoft Entra ID:
      • Set up a direct federation with Okta as the identity provider.
      • Configure the necessary permissions and consent for the application.
      • Ensure that the token issuance settings are correctly configured to trust tokens from Okta.
    2. In Okta:
      • Add Microsoft Entra ID as an identity provider in the Okta admin portal.
      • Configure the application settings to allow redirection to Entra ID for token issuance after authentication.
      • Ensure that the necessary attributes are mapped correctly between Okta and Entra ID.

    Architectural Guidance

    For detailed steps and architectural guidance, you can refer to the official Microsoft documentation on federating identity providers and setting up direct federation.

    References:

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

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.