This section describes how to edit the DSN configuration and then authenticate and connect to ADP 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 ADP

Before configuring your connection, ensure you have obtained and formatted your SSL client certificate as described in Before You Connect.

To connect to ADP, set the following properties:

• OAuthClientId: The client Id of the custom OAuth application you obtained from ADP.
• OAuthClientSecret: The custom OAuth application's client secret.
• SSLClientCert: The full file path to your SSL client certificate. If using a .pem file, ensure it contains both the Private Key and Public Certificate. If using a .pfx file, ensure it was created with the correct export password. See Before You Connect for more information.
• SSLClientCertPassword: The password for the SSL client certificate, if applicable.
• UseUAT: The connector makes requests to the production environment by default. If using a developer account, set UseUAT = true.
• RowScanDepth: The maximum number of rows to scan for the custom fields columns available in the table (default=100). Setting a high value may decrease performance.