You may want to integrate with Microsoft Azure Active Directory (AD) if:

• you want to let users (such as employees in your company) into your application from an Azure AD controlled by you or your organization.
• you want to let users coming from other companies' Azure ADs into your application. (You may want to set up those external directories as different connections.)

Before beginning:

• Register your Application with Auth0.
  • Select an appropriate Application Type.
  • Add an Allowed Callback URL of https://YOUR_APP/callback.
  • Make sure your Application's Grant Types include the appropriate flows.

To connect your application to Microsoft Azure AD, you must:

1. Set up your app in the Microsoft Azure portal.
2. Create an enterprise connection in Auth0.
3. Enable the enterprise connection for your Auth0 Application.
4. Test the connection.

To allow users to log in using a Microsoft Azure Active Directory account, you must register your application in the Microsoft Azure portal.

To learn how to register your application with Azure AD, follow Microsoft's Quickstart: Register an application with the Microsoft identity platform doc.

While setting up your app, make sure you use the following settings:

• If you want to allow users from external organizations (like other Azure AD directories), then when asked to choose Supported account types, choose the appropriate multitenant option. Multitenant options include the following: Accounts in any organizational directory (Any Azure AD directory - Multitenant).
• When asked to set a Redirect URI, enter your callback URL: https://YOUR_DOMAIN/login/callback.

During this process, Microsoft will generate an Application (client) ID for your application; you can find this on the app's Overview screen. Make note of this value.

To learn how to create a client secret, follow Microsoft's Quickstart: Configure a client application to access web APIs - Add Credentials to your web application. You want to generate a Client secret. Once generated, make note of this value.

To learn how to add permissions, follow Microsoft's Quickstart: Configure a client application to access web APIs - Add permissions to access web APIs. You want to configure permissions for the Microsoft Graph API.

While setting up your permissions, make sure you use the following settings:

• When asked for a permission type, choose Delegated permissions. Under User, select User.Read so your app can sign in users and read the signed-in user's profile. Under Directory, select Directory.Read.All so your app can read directory data on the signed-in user's behalf.

Next, you will need to create and configure a Microsoft Azure AD Enterprise Connection in Auth0. Make sure you have the Application (client) ID and the Client secret generated when you set up your app in the Microsoft Azure portal.

1. Navigate to the Connections > Enterprise page in the Auth0 Dashboard, and click the + next to Microsoft Azure AD.

2. Enter general information for your connection:

Field	Description
Connection name	Logical identifier for your connection; it must be unique for your tenant. Once set, this name can't be changed.
Display name (optional)	Text used to customize the login button for Universal Login. When set, the Universal Login login button reads: "Continue with {Display name}".
Logo URL (optional)	URL of image used to customize the login button for Universal Login. When set, the Universal Login login button displays the image as a 20px by 20px square.
Microsoft Azure AD Domain	Your Azure AD domain name. You can find this on your Azure AD directory's overview page in the Microsoft Azure portal.
Domain aliases (optional)	Comma-separated list of domains registered as an alias of the primary one. These may include any email domains that correspond to the connection.

3. Enter credentials, select attributes, and configure advanced settings for your connection, then click Create:

Field	Description
Client ID	Unique identifier for your registered Azure AD application. Enter the saved value of the Application (client) ID for the app you just registered in Azure AD.
Client Secret	String used to gain access to your registered Azure AD application. Enter the saved value of the Client secret for the app you just registered in Azure AD.
Use common endpoint (optional)	When enabled, your application will dynamically accept users from new directories. Typically enabled if you selected a multitenant option for Supported account types for the application you just registered in Azure AD. When enabled, Auth0 will redirect users to Azure's common login endpoint, and Azure will perform Home Realm Discovery based on the domain of the user's email address.
Identity API	API used by Auth0 to interact with Azure AD endpoints. Learn about the differences in behavior in Microsoft's Why update to Microsoft identity platform (v2.0) doc.
Attributes	Basic attributes for the signed-in user that your app can access. Indicates how much information you want stored in the Auth0 User Profile.
Extended Attributes (optional)	Extended attributes for the signed-in user that your app can access.
Auth0 APIs (optional)	When selected, indicates that you require the ability to make calls to the Azure AD API.
Sync user profile attributes at each login	When enabled, Auth0 automatically syncs user profile data with each user login, thereby ensuring that changes made in the connection source are automatically updated in Auth0.

4. If you have appropriate Azure AD administrative permissions to give consent to the application so users can log in, then click Continue; you will be asked to log in to your Azure AD account and give consent. Otherwise, provide the given URL to your administrator so that they can give consent.

To use your new Azure AD enterprise connection, you must first enable the connection for your Auth0 Applications.

Now you're ready to test your connection.

I registered my application with Azure AD, but when I go back to my Azure Active Directory App registrations, I can't see my application.

You may have accidentally registered your app in the wrong Azure AD directory (or not have created an Azure AD directory at all before registering your app). It's likely easiest to re-register your app in Azure AD. Make sure you are in the correct directory when you register the app. If you need to create an Azure AD directory, follow Microsoft's Quickstart: Create a new tenant in Azure Active Directory - Create a new tenant for your organization.

I receive the following error message: "Access cannot be granted to this service because the service listing is not properly configured by the publisher".

To resolve this, try changing the Supported account types for your registered Azure AD app. Make sure you have chosen an appropriate multitenant option in the Azure AD app's Authentication settings. Multitenant options include the following: Accounts in any organizational directory (Any Azure AD directory - Multitenant).

When users try to log in, we receive the following error message: "invalid_request; failed to obtain access token".

The most likely reason for this error is an invalid or expired Azure AD Client secret. To resolve this, generate a new Client secret for your app in Azure AD, then update the Client Secret in the enterprise connection configured with Auth0.

Signing keys are used by the identity provider to sign the authentication token it issues, and by the consumer application (Auth0 in this case) to validate the authenticity of the generated token.

For security purposes, Azure AD’s signing key rolls on a periodic basis. If this happens, you do not need to take any action. Auth0 will use the new key automatically.