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Dynamics 365 App for Outlook didn't load completely error occurs in Microsoft Dynamics 365 App for Outlook

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This article provides a solution to an error that occurs when you try to use the Dynamics 365 App for Outlook.

Applies to:   Microsoft Dynamics 365 Customer Engagement Online
Original KB number:   4567653

Symptoms

When attempting to use the Dynamics 365 App for Outlook, you see the following error:

"Dynamics 365 App for Outlook didn't load completely. Please ensure you are connected to internet and restart the add-in."

If you select the Show more link, the extra details include the following error:

"Error: window.Office not available"

Cause

While loading Dynamics 365 App for Outlook, external script office.js might fail to load. Because office.js is a required dependency, Dynamics 365 App for Outlook can't start and will show an error.

Resolution

  1. Verify your computer has a connection to the Internet.
  2. If you're using Outlook desktop app, follow Switch from working offline to online to ensure that you're online.
  3. Reload Dynamics 365 App for Outlook.