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Outlook add-in administration

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Written by Huzayfah Patel
Updated over 3 months ago

Download the Manifest file

When setting up the add-in for the first time, you'll need to download the Manifest file. We'll also occasionally amend the Manifest file for you to update in your system.
To download the latest file:

  1. Open the Manifest file >

  2. Save the file in your chosen location.

Set up the add-in for the first time

Note: This can only be carried out by the domain administrator.

Approve permissions

  1. Visit the Microsoft webpage.

  2. Login with your domain administrator credentials.

  3. Review the required permissions then click Accept.
    ​Note: The browser tab name and URL will update.

  4. Close the browser.

Deploy the Manifest file

  1. Follow the steps at the start of this article to download the latest Manifest file.

  2. Log in to the Microsoft Office 365 Admin centre using your admin user credentials.

  3. From the panel on the left click Show all then click Settings.

  4. Click Integrated apps, then towards the top of the screen, click the Add-ins link.

  5. Click Deploy Add-in, then click Next.

  6. Click Upload custom apps, then click Choose File.

  7. Navigate to the location where you saved the Manifest file.

  8. Click the file then click Open.

  9. Click Upload.

  10. Under assign users, select who you would like to have access to the add-in:

    • Everyone

    • Specific users/ groups - click in the text box and type the name to search for and add a user.

    • Just me

  11. Under Deployment Method, select one of the following:

    • Fixed (default)

    • Available - if this option is selected, users can add the ribbon.

    • Optional

  12. Click Next.

  13. Review the permission requirements then click Save.

Note: It can take up to 24 hours for the add-in to appear on app ribbons. You might need to relaunch Office to view it.

Update the Outlook add-in settings or upload a new file

To update the assigned users and deployment method, or upload the latest Manifest file to be deployed, follow the steps below:

Note: Changes can take up to 24 hours to be visible.

  1. If you need to update the Manifest file, download the latest version from the start of this article.

  2. Log in to the Microsoft Office 365 Admin centre using your admin user credentials.

  3. From the panel on the left click Show all, then click Settings.

  4. Click Integrated apps, then towards the top of the screen, click the Add-ins link.

  5. Select Access Legal.

  6. Under assign users and Deployment method, update the settings as required.

  7. To add a new manifest file:

    1. Click Update add-in, then click Choose file.

    2. Navigate to the location where you saved the manifest file.

    3. Select the file then click open.

    4. Click Update.

  8. Click Save then click Close.

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