> For the complete documentation index, see [llms.txt](https://docs.appstrategy.com/apprules-r-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.appstrategy.com/apprules-r-documentation/platform/platform-features/system-settings/data-sources/connection-settings/collaboration/office365.md).

# Office365

## Establishing a Connection <a href="#default" id="default"></a>

### Authenticating to Office 365

Office 365 uses the OAuth authentication standard. To authenticate using OAuth, you will need to create an app to obtain the OAuthClientId, OAuthClientSecret, and CallbackURL connection properties.&#x20;

#### Authenticating using MSI Authentication

If you are running Office 365 on an Azure VM, you can leverage Managed Service Identity (MSI) credentials to connect:

* AuthScheme: Set this to **AzureMSI**.

The MSI credentials will then be automatically obtained for authentication.


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