If your Google Calendar isn't syncing properly, you're not alone. Here are the most common issues and how to fix them.
- New events don't show up on other devices
- Changes take hours or days to sync
- Some events appear, others don't
Check your internet connection
Google Calendar requires an active internet connection to sync. Make sure you're connected to WiFi or mobile data.
Force sync your calendar
- Open Google Calendar app
- Pull down to refresh
- Wait for the sync to complete
Check sync settings
- Go to Settings > Accounts > Google
- Make sure Calendar sync is enabled
- Tap "Sync now"
- Same event appears multiple times
- Duplicates appear after syncing with other apps
- Deleting one duplicate brings back others
Identify the source
Check which calendar app is creating the duplicates. Often it's a misconfigured sync setting.
Remove duplicate calendars
- Go to Google Calendar settings
- Check for duplicate calendar subscriptions
- Remove any redundant calendars
Use a sync tool with duplicate detection
Caltsu automatically prevents duplicate events by tracking what it creates.
- Google Calendar doesn't update in Outlook
- Outlook events don't appear in Google Calendar
- Sync stopped working suddenly
Re-authorize the connection
- Go to your Google Account settings
- Find third-party app access
- Remove Outlook and re-add it
Check subscription URL
If using URL subscription:
- Verify the calendar URL is correct
- Make sure the calendar is set to public or shared
- Try re-adding the subscription
Use Caltsu for reliable sync
For two-way sync between Google and Outlook, Caltsu provides a more reliable solution than built-in integrations.
- Events take hours to appear on other calendars
- Real-time sync not working
- Only syncs when you manually refresh
Understand sync intervals
Free integrations often sync every 12-24 hours. This is a limitation of free services.
Enable push notifications
Some apps support push sync for faster updates. Check your app settings.
Upgrade to real-time sync
Caltsu uses webhooks to sync changes within seconds, not hours.
- "Cannot access calendar" errors
- Permission denied messages
- Calendar appears empty after connection
Grant necessary permissions
- Go to Google Account > Security > Third-party apps
- Find the app having issues
- Make sure all calendar permissions are granted
Check calendar sharing settings
- Open Google Calendar settings
- Select the calendar having issues
- Verify sharing permissions are correct
- Use a dedicated sync tool - Built-in integrations have limitations
- Keep apps updated - Updates often fix sync bugs
- Monitor sync status - Check periodically that sync is working
- Don't over-complicate - Simpler setups have fewer issues
If you've tried all these solutions and still have issues:
- Check the Google Workspace Status Dashboard
- Look for known issues with your calendar app
- Contact the app's support team
Tired of dealing with sync errors? Caltsu provides reliable, real-time calendar sync that just works.
- Automatic error recovery
- Real-time sync with webhooks
- Clear sync status and history
- Dedicated support
Try Caltsu free and never worry about sync errors again.