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chetanoptimus's avatar
chetanoptimus
Copper Contributor
Aug 27, 2025

How to Upload Files Using Office 365 Agents SDK Across Multiple Tenants

I'm currently working with the Office 365 Agents SDK and looking to implement a file upload feature that can work across multiple Microsoft 365 tenants. Specifically, I'm trying to understand: What...
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Sayali-MSFT's avatar
Sayali-MSFT
Icon for Microsoft rankMicrosoft
Aug 28, 2025

Hello @chetanoptimus, Thank you for reaching out!
Use Microsoft Graph for file uploads, ensure your app is multi-tenant, handle user consent, and use delegated permissions for user uploads. The Agents SDK helps with context and authentication, but file upload is via Graph API.
Reference Document-
1.Upload small files - Microsoft Graph v1.0 | Microsoft Learn

2.Convert single-tenant app to multitenant on Microsoft Entra ID - Microsoft identity platform | Microsoft Learn

3.Quickstart - Sign in users in a single-page app (SPA) and call the Microsoft Graph API - Microsoft identity platform | Microsoft Learn

  • Sayali-MSFT's avatar
    Sayali-MSFT
    Icon for Microsoft rankMicrosoft
    Sep 01, 2025

    Hello @chetanoptimus, Could you please confirm if your issue has resolved with provided suggestions or still looking for any help?

    • chetanoptimus's avatar
      chetanoptimus
      Copper Contributor
      Sep 01, 2025

      Hi, thank you for sharing the references.

      I am still unclear on how this would work in practice since multi-tenant bots have been deprecated as of July 31, 2025. In that scenario, I am not sure how external tenant users would be able to authenticate and then upload files through the Agents SDK. Could you clarify what the recommended approach is for enabling cross-tenant file uploads now that multi-tenant registration is no longer supported?

      • Sayali-MSFT's avatar
        Sayali-MSFT
        Icon for Microsoft rankMicrosoft
        Sep 02, 2025

        Hello @chetanoptimus, single tenant/multitenant only applies to the Azure Bot registration type and not the Entra/AAD app used for Bot creation. Entra app can continued to be created as Multi-Tenant (Accounts in any organizational directory (Any Azure AD tenant – Multitenant).

        Only for the "Type of App" in Azure bot registration, options are now limited to Single Tenant and User-Assigned Managed Identity.

         

         

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