> ## 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.

# Connecting to OneDrive

In CData Sync, you can connect to OneDrive in several ways. Select your authentication method below, then proceed to the relevant section and follow those instructions.

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

### 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.

After you complete this section, go to *Complete Your Connection* on the connection page to finish setting up the connection.

### 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.

After you complete this section, go to *Complete Your Connection* on the connection page to finish setting up the connection.

### Azure Service Principal

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

<ul><li>**Auth Scheme:** Select **AzureServicePrincipal**.</li>
<li>**Azure Tenant:** Enter the Microsoft Online tenant to which you want to connect.</li>
<li>**OAuth Client Id:** Enter the client Id that you were assigned when you registered your application with an OAuth authorization server.</li>
<li>**OAuth Client Secret:** Enter the client secret that you were assigned when you registered your application with an OAuth authorization server.</li></ul>

To obtain the OAuth client Id and client secret for your application:

<ol><li>Log in to the [Azure portal](https://portal.azure.com).</li>
<li>In the left navigation pane, select **All services**. Then, search for and select **App registrations**.</li>
<li>Click **New registrations**.</li>
<li>Enter an application name and select **Any Azure AD Directory - Multi Tenant**.</li>
<li>After you create the application, copy the application (client) Id value that is displayed in the **Overview** section. Use this value as the OAuth client Id.</li>
<li>Navigate to the **Certificates & Secrets** section and select **New Client Secret** for the application.</li>
<li>Specify the duration and save the client secret. After you save it, the key value is displayed.</li>
<li>Copy this value because it is displayed only once. You will use this value as the OAuth client secret.</li>
<li>On the **Authentication** tab, make sure to select **Access tokens (used for implicit flows)**.</li></ol>

After you complete this section, go to *Complete Your Connection* on the connection page to finish setting up the connection.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.