Setting up the SharePoint Online Client Extensibility Web Application Principal

  • Published on Jul 22, 2025
Prev Next

To set up the Entra ID app “SharePoint Online Client Extensibility Web Application Principal”, the app needs to be enabled.

Prerequisite

  • You are a SharePoint site owner.

Steps

  1. Open the SharePoint admin center.

  2. Go to Show all > SharePoint > more features > Apps.

    SharePoint admin center displaying various features including user profiles and apps section.

    Apps tile in SharePoint Online

  3. Then, select App Catalog > Apps for SharePoint.
    The Manage apps window opens.

    Manage apps interface showing upload options and existing SharePoint apps with statuses.

    Managing apps

  4. Enable the app by selecting the Enable app button.

    Prompt to enable the dox42 command extension app in SharePoint settings.

    Enabling the app

  5. Once you have enabled the app, you need to grant it API access. Select the Go to API access page button and follow the instructions.

    Manage SharePoint apps and approve API access for proper functionality.

    Approving API access to the app

Result

By enabling the app, “SharePoint Online Client Extensibility Web Application Principal” is being added to app registrations in your Microsoft Entra admin center. This may take a few minutes.

Overview of app registrations for dox42 GmbH in Microsoft Azure portal.

Added SharePoint Online Client Extensibility Web Application Principal