SharePoint and OneDrive integration with Azure AD B2B (Preview)

This article describes how to enable Microsoft SharePoint and Microsoft OneDrive integration with Azure AD B2B.

Azure AD B2B provides authentication and management of guest users. Authentication happens via one-time passcode when they don't already have a work or school account or a Microsoft account.

With SharePoint and OneDrive integration, the Azure B2B one-time passcode feature is used for external sharing of files, folders, list items, document libraries and sites. This feature provides an upgraded experience from the existing secure external sharing recipient experience.

Enabling the preview does not change your sharing settings. For example, if you have site collections where external sharing is turned off, it will remain off.

Once the preview is enabled you and your users do not have to reshare or do any manual migration for external users previously shared with. Instead, when an external user clicks on a link that was created before the preview was enabled, SharePoint will automatically create a B2B guest account. This guest account is created on behalf of the user who originally created the sharing link. (If the user who created the link is no longer in the organization or no longer has permission to share, the guest user will not be added to the directory and the file will need to be reshared.)

SharePoint and OneDrive integration with the Azure AD B2B one-time passcode feature is currently in preview. After preview, this feature will replace the ad-hoc external sharing experience used in OneDrive and SharePoint today for all tenants.

Advantages of Azure AD B2B include:

  • Invited external users are each given an account in the directory and are subject to Azure AD access policies such as multi-factor authentication.
  • Invitations to a SharePoint site use Azure AD B2B and no longer require users to have or create a Microsoft account.
  • If you have configured Google federation in Azure AD, federated users can now access SharePoint and OneDrive resources that you have shared with them.
  • SharePoint and OneDrive sharing is subject to the Azure AD organizational relationships settings, such as Members can invite and Guests can invite.

This preview is not supported in the following Microsoft 365 services:

  • Office 365 Germany
  • Office 365 operated by 21Vianet
  • GCC High and DoD

Opting in to the preview

This preview requires that your organization also be opted into the Azure AD email one-time passcode authentication preview.

To opt in to the Azure AD passcode authentication preview

  1. Sign in to the Azure portal as an Azure AD global admin.
  2. In the nav pane, select Azure Active Directory.
  3. Under Manage, select Organizational Relationships.
  4. Select Settings.
  5. Under Enable Email One-Time Passcode for guests (Preview), select Yes.
  6. Select Save.

To opt in to the SharePoint and OneDrive integration with Azure AD B2B

  1. Download the latest SharePoint Online Management Shell.

    Note

    If you installed a previous version of the SharePoint Online Management Shell, go to Add or remove programs and uninstall "SharePoint Online Management Shell."
    On the Download Center page, select your language and then click the Download button. You'll be asked to choose between downloading a x64 and x86 .msi file. Download the x64 file if you're running the 64-bit version of Windows or the x86 file if you're running the 32-bit version. If you don't know, see Which version of Windows operating system am I running?. After the file downloads, run it and follow the steps in the Setup Wizard.

  2. Connect to SharePoint as a global admin or SharePoint admin in Microsoft 365. To learn how, see Getting started with SharePoint Online Management Shell.

  3. Run the following cmdlets:

    Set-SPOTenant -EnableAzureADB2BIntegration $true
    Set-SPOTenant -SyncAadB2BManagementPolicy $true
    

Opting out of the preview

You can disable the preview by running Set-SPOTenant -EnableAzureADB2BIntegration $false. (You can also opt out of the Azure AD passcode authentication preview.) Content that was shared externally while the preview was enabled will need to be shared again with the specific external users.

Note that after preview, this feature will replace the ad-hoc external sharing experience used in OneDrive and SharePoint today for all tenants and you will not be able to opt out.

Feedback

We're interested in your feedback about this preview. Please fill out the Feedback on SharePoint integration with Azure AD B2B Preview survey.

See also

Set-SPOTenant

External sharing overview