Using Copilot Studio in a B2B scenario - can a custom Copilot be shared with Guest users?

Jonas Wauters 5 Reputatiepunten
2025-10-21T14:00:49.6733333+00:00

We’re exploring a B2B setup with Microsoft Copilot Studio.

Can a custom Copilot created in one tenant be shared with a Guest user (via Azure AD B2B)? If so:

  • How will the experience look for the Guest user? Will the Copilot appear in their home tenant as an available chatbot?
  • When the Guest interacts with the Copilot, will it use the Guest’s permissions for data sources such as SharePoint knowledge (so that access is limited to what that Guest can see)?

Has anyone tested this setup or found Microsoft documentation confirming how authentication and permissions behave in this scenario?

Microsoft Copilot | Windows Copilot | App
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  1. Haytham-C 5,635 Reputatiepunten Microsoft External Staff Moderator
    2025-10-30T01:01:29.9966667+00:00

    (Disclaimer: Please note that you're posting on a Dutch forum and using a different language, therefore I will engage using the same language as the original post)

    Hello Jonas Wauters

    Thank you for posting in Microsoft Q&A Forum

    I understand that you want to setup Microsoft Studio session with your business. Unfortunately, us Forum user don't have access to the said product; therefore, I would advise you posting your query on Microsoft Power Platform for Copilot Studio and expert in this product will reach out and provide you with the information that you're looking for.

    My apology for cannot provide a clear answer but I believed that by reaching the correct support channel can help solve your question faster.

    Thank you for your understanding.

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