Fix Teams Channel Calendar and SharePoint Calendar Sync Issues
Question details
Events created in Microsoft Teams channel calendars show incorrect times in SharePoint, or SharePoint events fail to appear in Teams.
- Product
- Microsoft Teams and SharePoint
- Device & OS
- not provided
- Scenario
- Managing and viewing scheduled events across integrated Microsoft Teams and SharePoint environments.
- Observed behavior
- Synchronization fails between the platforms, resulting in mismatched event dates and times, or events completely missing from one of the calendars.
Ensure you have a stable internet connection and verify that both your Microsoft Teams desktop client and web browser are updated to their latest versions.
Verify Local Settings and Escalate to Microsoft 365 Administrator
Because calendar syncing involves backend data integration, verifying your local time zone and cache settings before escalating the issue to an administrator is the most effective approach.
Mismatched regional settings or corrupted local cache data often cause temporary synchronization failures between Microsoft 365 apps. If local troubleshooting fails, backend investigation is required.
Open the settings in both your Microsoft Teams application and your SharePoint site. Ensure that the region and time zone configurations match exactly to prevent date and time discrepancies during sync.
Clear your web browser's cache for SharePoint. For Microsoft Teams, close the application completely, navigate to the local AppData folder for Teams, and delete the cache files to force a fresh data sync upon restart.
If the calendars still do not sync correctly, reach out to your organization's Microsoft 365 administrator. Describe the steps you have taken so they can open a Microsoft Support ticket.
Ask your administrator to collect the necessary correlation IDs and backend logs to provide to Microsoft Support, as higher permissions are required to investigate cross-platform syncing errors.
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Frequently Asked Questions
Why are my SharePoint calendar events not showing in Microsoft Teams?
This typically occurs due to a synchronization delay, outdated browser cache, or mismatched Group Calendar web part configurations. Clearing your cache and verifying the web part settings often resolves temporary glitches.
Can time zone differences cause Teams calendar sync errors?
Yes. If your SharePoint site's regional settings and your Microsoft Teams local time zone settings are different, the synchronized events may display on incorrect dates or at the wrong times.
How do I clear the Microsoft Teams cache to fix syncing problems?
You can clear the cache by completely closing the Teams application, navigating to the %appdata%\Microsoft\Teams folder on your Windows computer (or the equivalent Library directory on Mac), and deleting its contents before restarting the app.
What should an administrator do if calendar sync issues persist across the organization?
The Microsoft 365 administrator should collect correlation IDs, network traces, and user logs, then submit a formal support ticket via the Microsoft 365 admin center for a backend investigation by Microsoft.
