> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure an OAuth 2.0 External Identity Provider

> Set up AD FS or Azure Active Directory (Azure AD) as an OAuth 2.0 External Identity Provider for your ABBYY Vantage tenant.

Set up AD FS or Azure AD as an OAuth 2.0 External Identity Provider for your Vantage tenant. Each guide below walks through the provider-side configuration; once that's complete, [connect the provider to your Vantage tenant](/vantage/documentation/tenant-admin/tenant-management/configuring-tenant).

<Note>
  This setup requires the **Tenant Administrator** role.
</Note>

Configure your provider as either [Active Directory as an OAuth 2.0 External Identity Provider](/vantage/documentation/tenant-admin/tenant-management/oauth-2-0-active-directory) or [Azure AD as an OAuth 2.0 External Identity Provider](/vantage/documentation/tenant-admin/tenant-management/oauth-2-0-azure-active-directory).

## Related topics

* [Set up an External Identity Provider](/vantage/documentation/tenant-admin/tenant-management/external-identity-provider)
* [Configure a SAML 2.0 External Identity Provider](/vantage/documentation/tenant-admin/tenant-management/saml-2-0)
* [Set up an External Identity Provider for a tenant](/vantage/documentation/tenant-admin/tenant-management/configuring-tenant)
* [Test external authentication](/vantage/documentation/tenant-admin/tenant-management/testing-external-auth)