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

# Microsoft OneLake Mirroring

You can use the Microsoft OneLake Mirroring connector from the CData Sync application to move data
from any supported source to the Microsoft OneLake Mirroring destination. To do so, you need to add
the connector, authenticate to the connector, and complete your connection.

## Add the Microsoft OneLake Mirroring Connector

To enable Sync to use data from Microsoft OneLake Mirroring, you first must add the
connector, as follows:

<ol>
  <li>Open the **Connections** page of the Sync dashboard.</li>
  <li>Click **Add Connection** to open the **Select Connectors** page.</li>
  <li>Click the **Destinations** tab and locate
  the **Microsoft OneLake Mirroring** row.</li>

  <li>
    Click the **Configure Connection** icon at the end of that row to open
    the **New Connection** page. This action opens the
    **Add Connection** dialog.

    **Note:** If the **Configure Connection** icon is not
    available, click the **Download Connector** icon to install
    the Microsoft OneLake Mirroring connector.
  </li>

  <li>Enter a name for your connection in the **Add Connection** dialog.</li>
  <li>Click **Add** to open the **Settings** tab for your connector.</li>
</ol>

For more information about installing new connectors, see
[Connections](https://docs.sync.cdata.com/26.4/en/connections/connections.md).

## Authenticate to Microsoft OneLake Mirroring

After you add the connector, you need to set the required properties.

**URI:** Enter the Landing Zone path in the form onelake://*WorkspaceIdentifier*/*DatabaseIdentifier*/Files/LandingZone. You can locate the URI in Microsoft Fabric. From your mirrored database, copy the Landing Zone URL and replace the [https://onelake.dfs.fabric.microsoft.com](https://onelake.dfs.fabric.microsoft.com) portion with onelake://.

CData Sync supports authenticating to Microsoft OneLake Mirroring in several ways. Select your authentication method below to proceed to the relevant section that contains the authentication details.

* [**Azure Active Directory**](#azure-active-directory)
* [**Azure Managed Service Identity**](#azure-managed-service-identity)
* [**Azure Service Principal**](#azure-service-principal)
* [**Azure Service Principal Certificate**](#azure-service-principal-certificate)

### Azure Active Directory

To connect with an Azure Active Directory (AD) user account, select **AzureAD**
for **Auth Scheme**. CData Sync provides an embedded OAuth application with
which to connect, so no additional properties are required.

### Azure Managed Service Identity

To leverage Azure Managed Service Identity (MSI) when CData Sync is running on an Azure
virtual machine, select **Azure MSI** for **Auth Scheme**. No
additional properties are required.

### Azure Service Principal

To connect with an Azure service principal and client secret, specify the following properties:

* **Auth Scheme:** Select **AzureServicePrincipal**.
* **Azure Tenant:** Enter the Parquet tenant (either by name or identifier) that you want to use to access data.
* **OAuth Client Id:** Enter the client Id that you were assigned when you registered your application with an OAuth authorization server.
* **OAuth Client Secret:** Enter the client secret that you were assigned when you registered your application with an OAuth authorization server.

### Azure Service Principal Certificate

To connect with an Azure service principal and client certificate, set the following properties:

* **Auth Scheme:** Select **AzureServicePrincipalCert**.
* **Azure Tenant:** Enter the Microsoft Online tenant to which you want to connect.
* **OAuth JWT Cert:** Enter your Java web tokens (JWT) certificate store.
* **OAuth JWT Cert Type:** Enter the type of key store that contains your JWT Certificate. The default type is **PEMKEY\_BLOB**.
* **OAuth Client Id:** Enter the client Id that you were assigned when you registered your application with an OAuth authorization server.

## Complete Your Connection

To complete your connection:

1. Define advanced connection settings on the **Advanced** tab. (In most cases, though, you should not need these settings.)
2. If you authenticate with AzureAD, click **Connect to Microsoft OneLake Mirroring** to connect to your Microsoft OneLake Mirroring account.
3. Click **Create & Test** to create your connection.


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