If the ExtendInsights add-in stops working after a Microsoft 365 or Office update, the issue may be caused by Microsoft Office, your Microsoft 365 environment, or a local Office configuration.
Check Microsoft First
If you're a Microsoft 365 Administrator:
Sign in to admin.microsoft.com.
Go to Health → Service health.
Check for incidents affecting:
Office Add-ins
Microsoft Excel
Microsoft AppSource
Exchange Online
Microsoft 365 Apps
If an active incident is listed, Microsoft is already working on a resolution.
If No Microsoft Incident Is Reported
Work through the common issues steps to clear the cache, and reinstall from Marketplace:
If needed, have your IT admin redeploy from the admin center:
➡️ See Add-in still broken for everyone after redeploying for a full checklist of what IT should verify.
Known Causes
Microsoft has identified several issues that can affect Office add-ins, including:
Microsoft 365 service incidents
Centralized deployment delays or failures
Tenant policies that restrict AppSource add-ins
Local Office add-in cache issues
Check Microsoft's live known issues page: learn.microsoft.com — Office Add-ins Known Issues
Need Help?
If Microsoft Service Health shows no active incidents and the issue persists after completing the troubleshooting steps, contact CloudExtend Support for further assistance.
💬 Use in-app chat (bottom-right of the support site)
✉️ Email cloudextend-support@celigo.com
If you wish to contact Microsoft support, see the guide: