This section describes how to edit the DSN configuration and then authenticate and connect to Microsoft Dynamics 365 APIs.

DSN Configuration

You can use the Microsoft ODBC Data Source Administrator to edit the DSN configuration. Note that the installation process creates a both a user DSN and a system DSN, as described in Installing the Connector.

Note: The connector stores connection information in the Windows registry. To ensure that the connector can write to the registry, either run Power BI as an administrator or use a User DSN for your connection instead of a System DSN.

User DSN

Complete the following steps to edit the DSN configuration:

1. Select Start > Search, and enter ODBC Data Sources in the Search box.
2. Choose the version of the ODBC Administrator that corresponds to the bitness of your Power BI Desktop installation (32-bit or 64-bit).
3. Select the system data source and click Configure.
4. Edit the information on the Connection tab and click OK.

System DSN

Configure the system DSN the same way as the user DSN, except you will need to switch to the System DSN tab before performing Step 3.

If you're using Power BI's On-Premises Data Gateway with Standard mode, you must use the system DSN.

You must also specify a valid location for OAuthSettingsLocation (a path where OAuth credentials are locally stored to avoid repeated OAuth prompts).

This is because the Standard mode runs on service mode and can only access permitted locations, such as C:\Windows\ServiceProfiles\PBIEgwService\AppData\Local\Microsoft\On-premises data gateway.

Connecting to Microsoft Dynamics 365

The Microsoft Dynamics 365 driver supports connecting to the following Microsoft Dynamics 365 editions:

• CustomerService
• FieldService
• FinOpsOnline (Default)
• FinOpsOnPremises
• HumanResources
• Marketing
• ProjectOperations
• Sales

Notes:

• Supply Chain Management is the same as Finance and Operations. To connect to either of these, set Edition to either FinOpsOnline or FinOpsOnPremises.
• For Microsoft Dynamics 365 Business Central, use the separate Microsoft Dynamics 365 Business Central driver.

To connect to any of the supported Microsoft Dynamics 365 editions, set these parameters:

• OrganizationURL: The URL to your Microsoft Dynamics 365 organization; for example, https://orgcb42e1d0.crm.dynamics.com.
• Edition: As shown in the list of editions above.

Authenticating to Microsoft Dynamics 365

Microsoft Dynamics 365 supports authentication via Microsoft Entra ID (Azure AD), Azure Service Principal, or Azure Managed Service Identity (MSI). All of these are based on the OAuth standard. The following subsections describe how to set up these authentication schemes.

Note: Before you begin, confirm which authentication scheme your organization supports. If necessary, consult your System Administrator.

Entra ID (Azure AD)

Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".

Microsoft Entra ID is a multi-tenant, cloud-based identity and access management platform. It supports OAuth-based authentication flows that enable the driver to access Microsoft Dynamics 365 endpoints securely.

Authentication to Entra ID via a web application always requires that you first create and register a custom OAuth application. This enables your application to define its own redirect URI, manage credential scope, and comply with organization-specific security policies.

For full instructions on how to create and register a custom OAuth application, see Creating an Entra ID (Azure AD) Application.

After setting AuthScheme to AzureAD, the steps to authenticate vary, depending on the environment. For details on how to connect from desktop applications, web-based workflows, or headless systems, see the following sections.

Desktop Applications

You can authenticate from a desktop application using either the driver's embedded OAuth application or a custom OAuth application registered in Microsoft Entra ID.

Option 1: Use the Embedded OAuth Application

This is a pre-registered application, included with the driver. It simplifies setup and eliminates the need to register your own credentials and is ideal for development environments, single-user tools, or any setup where quick and easy authentication is preferred.

Set the following connection properties:

• AuthScheme: AzureAD
• InitiateOAuth:
  • GETANDREFRESH – Use for the initial login. Launches the login page and saves tokens.
  • REFRESH – Use this setting when you have already obtained valid access and refresh tokens. Reuses stored tokens without prompting the user again.

When you connect, the driver opens the Microsoft Entra sign-in page in your default browser. After signing in and granting access, the driver retrieves the access and refresh tokens and saves them to the path specified by OAuthSettingsLocation.

Option 2: Use a Custom OAuth Application

If your organization requires more control, such as managing security policies, redirect URIs, or application branding, you can instead register a custom OAuth application in Microsoft Entra ID and provide its values during connection.

During registration, record the following values:

• OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
• OAuthClientSecret: The client secret that was that was generated when you registered your custom OAuth application.
• CallbackURL: A redirect URI you defined during application registration.

For full instructions on how to register a custom OAuth application and configure redirect URIs, see Creating an Entra ID (Azure AD) Application.

Set the following connection properties:

• AuthScheme: AzureAD
• InitiateOAuth:
  • GETANDREFRESH – Use for the initial login. Launches the login page and saves tokens.
  • REFRESH – Use this setting when you have already obtained valid access and refresh tokens. Reuses stored tokens without prompting the user again.
• OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
• OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
• CallbackURL: A redirect URI you defined during application registration.

After authentication, tokens are saved to OAuthSettingsLocation. These values persist across sessions and are used to automatically refresh the access token when it expires, so you don't need to log in again on future connections.

Headless Machines

Headless environments like CI/CD pipelines, background services, or server-based integrations do not have an interactive browser. To authenticate using AzureAD, you must complete the OAuth flow on a separate device with a browser and transfer the authentication result to the headless system.

Setup options:

• Obtain and exchange a verifier code
  • Use another device to sign in and retrieve a verifier code, which the headless system uses to request tokens.
• Transfer an OAuth settings file
  • Authenticate on another device, then copy the stored token file to the headless environment.

Using a Verifier Code

1. On a device with a browser:
   • If using a custom OAuth app, set the following properties:
     • OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
     • OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
   • Call the GetOAuthAuthorizationUrl stored procedure to generate a sign-in URL.
   • Open the returned URL in a browser. Sign in and grant grant permissions to the driver. You are redirected to the callback URL, which contains the verifier code.
   • After signing in, save the value of the code parameter from the redirect URL. You will use this later to set the OAuthVerifier connection property.
2. On the headless machine:
   • Set the following properties:
     • AuthScheme: AzureAD
     • OAuthVerifier: The verifier code you saved.
     • OAuthSettingsLocation: The path of the file that holds the OAuth token values.
     • For custom applications:
       • OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
       • OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
   • After tokens are saved, reuse them by setting:
     • OAuthSettingsLocation: Make sure this location grants read and write permissions to the driver to enable the automatic refreshing of the access token.
     • For custom applications:
       • OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
       • OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.

Transferring OAuth Settings

1. On a device with a browser:
   • Connect using the instructions in the Desktop Applications section.
   • After connecting, tokens are saved to the file path in OAuthSettingsLocation. The default filename is OAuthSettings.txt.

   Encrypted values are stored in the system registry.

2. On the headless machine:
   • Copy the OAuth settings file to the machine.
   • Set the following properties:
     • AuthScheme: AzureAD
     • OAuthSettingsLocation: Make sure this location grants read and write permissions to the driver to enable the automatic refreshing of the access token.
     • For custom applications:
       • OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
       • OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.

After setup, the driver uses the stored tokens to refresh the access token automatically, no browser or manual login is required.

Azure Service Principal

Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".

Service principals are security objects within a Microsoft Entra ID (Azure AD) application that define what that application can do within a specific tenant. Service principals are created in the Entra admin center, also accessible through the Azure portal. As part of the creation process we also specify whether the service principal will access Entra resources via a client secret or a certificate.

Depending on the service you are connecting to, a tenant administrator may need to enable Service Principal authentication or assign the Service Principal to the appropriate roles or security groups.

Instead of being tied to a particular user, service principal permissions are based on the roles assigned to them. These roles determine which resources the application can access and which operations it can perform.

When authenticating using a service principal, you must register an application with an Entra tenant, as described in Creating a Service Principal App in Entra ID (Azure AD).

This subsection describes properties you must set before you can connect. These vary, depending on whether you will authenticate via a client secret or a certificate.

Authentication with Client Secret

• AuthScheme: AzureServicePrincipal.
• AzureTenant: The Azure AD tenant to which you will connect.
• OAuthClientId: The client ID in your application settings.
• OAuthClientSecret: The client secret in your application settings.
• InitiateOAuth: GETANDREFRESH. You can use InitiateOAuth to avoid repeating the OAuth exchange and manually setting the OAuthAccessToken.

Authentication with Certificate

• AuthScheme: AzureServicePrincipalCert.
• AzureTenant: The Azure AD tenant to which you will connect.
• OAuthClientId: The client Id in your application settings.
• OAuthJWTCert: The JWT Certificate store.
• OAuthJWTCertType: The JWT Certificate store type.
• InitiateOAuth: GETANDREFRESH. You can use InitiateOAuth to avoid repeating the OAuth exchange and manually setting the OAuthAccessToken.

Managed Service Identity (MSI)

If you are running Microsoft Dynamics 365 on an Azure VM and want to automatically obtain Managed Service Identity (MSI) credentials to connect, set AuthScheme to AzureMSI.

User-Managed Identities

To obtain a token for a managed identity, use the OAuthClientId property to specify the managed identity's client_id.

If your VM has multiple user-assigned managed identities, you must also specify OAuthClientId.