Resolved: Add-in Error Loading Duo Prompt in Outlook Add-ins

Incident Discovery Time: 09:33am on 08/14/2023 Time of Resolution: 09:24am on 08/16/2023 Services Impacted: Conferencing, Zoom

Description of Impact


Clients who used Outlook for Windows Add-ins that authenticated with Shib/Duo ran into an add-in error message. This was most prevalent with the Zoom scheduling add-in due to its frequent usage, but we generalized this to an underlying issue with Duo Universal and WebView2.

Incident Description and Resolution


The issue has been resolved by the vendor.

Additional Information:

If you continue to have issues, please contact the IT Help Center.

Previous Update

Incident Discovery Time: 02:04am on 08/15/2023 Services Impacted: Conferencing, Zoom

Description of Impact

Clients using Outlook for Windows Add-ins that authenticate with Shibboleth and Duo are encountering into an add-in error message. While this is most prevalent with the Zoom scheduling add-in, it is a general issue with the Duo Universal Prompt and Microsoft Edge WebView2.

Current Status

IS&T teams have identified the issue and are currently investigating.

Additional Information

Currently, users can use Outlook Web Access as a workaround.
  • It is important to note that Outlook for Mac is not affected by this issue.
  • Next Update: upon resolution