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Dynamics Lifecycle Services API - Authentication

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This article provides an overview of the Microsoft Entra setup for calling Lifecycle Services APIs including Dynamics Translation Service API. To access resources available using the API, you must get a bearer token from Microsoft Entra and send it as a header along with each request.

The following steps are required to obtain a bearer token with the correct permissions:

  1. Create an application registration in your Microsoft Entra tenant.
  2. Configure API permissions.
  3. Configure public client.
  4. Request an access token.

Create an application registration

  1. Go to the Microsoft Entra app registration page and create a new registration.
  2. Name the application and verify that the Single tenant option is selected. You can skip the redirect URI setup.

Configure API permissions

  1. In your new app registration, on the Manage - API Permissions tab, in the Configure permissions section, select Add a Permission.
  2. In the dialog box, on the APIs my organization uses tab, search for Dynamics Lifecycle services. You might see several entries with a name similar to this, so be sure you use the one with the GUID, 913c6de4-2a4a-4a61-a9ce-945d2b2ce2e0.

Note

These APIs make use of delegated permissions only at this time. For applications that run with a user context, you request delegated permissions using the scope parameter of user_impersonation. The permissions delegate the privileges of the signed-in user to your application, allowing it to act as the user when calling the API endpoints.

Service Principal authentication, where the application calls the API using its own identity or a managed identity, isn't supported.

  1. After the required permissions are added to the application, select Grant admin consent to complete the setup. This is necessary when you want to allow users to access your app right away, instead of requiring an interactive consent experience. If you can support interactive consent, we recommend following the Microsoft identity platform and OAuth 2.0 authorization code flow.

Step 3. Configure public client

To begin reading and writing resources on behalf of a user, enable the Public Client setting. This is the only way that Microsoft Entra ID will accept username and password properties in the body of your token request. Ig plan to use this feature, it won't work for accounts that have multi-factor authentication enabled.

  • To enable the Public Client setting, on the Manage - Authentication tab, in the the Advanced Settings section, set the Public Client switch to Yes.

Step 4. Request an access token

To request a bearer token for username and password, send a POST request via HTTP to Microsoft Entra ID with a username and password payload.

  Content-Type: application/x-www-form-urlencoded
  Host: login.microsoftonline.com
  Accept: application/json
  POST https://login.microsoftonline.com/YOUR_TENANT.COM/oauth2/v2.0/token
  BODY:
  client_id={CLIENT_ID_FROM_AZURE_CLIENT_APP}&scope=https://lcsapi.lcs.dynamics.com//.default&username={USER_EMAIL_ADDRESS}&password={PASSWORD}&grant_type=password

The above example contains placeholders that you can retrieve from your client application in Microsoft Entra ID. You'll receive a response that can be used to make subsequent calls to Power Platform API.

{
  "token_type": "Bearer",
  "scope": "https://lcsapi.lcs.dynamics.com//user_impersonation https://lcsapi.lcs.dynamics.com//.default",
  "expires_in": 4228,
  "ext_expires_in": 4228,
  "access_token": "eyJ0eXAiOiJKV1Qi..."
}

Use the access_token value in subsequent calls to the Lifecycle Services API with the Authorization HTTP header.