The Mail and Calendar apps for Windows 10 don't support two-factor authentication. If two-factor authentication is turned on for your account, you'll need to create an app password for that account. An app password is used instead of your normal account password for apps that don't support two-factor authentication. You cansign up for a 14-day free trial, no credit card required, to sync your calendars and streamline your availability across all devices. In most cases, the only way to fix Outlook Calendar not syncing is to use a third-party Calendar Sync Tool like OneCal.

Google Calendar may be working correctly, you’ve just not selected the calendar. If this doesn’t work, the only way to make it work is to use a third-party calendar automation tool like OneCal. Reconnecting imported calendars (Outlook, iCloud, or Google Calendars) using the Google Calendar app on your iPhone or iPad is not possible.

Additional troubleshooting tips for ‘why won’t my Outlook calendar sync?’

Try the general troubleshooting solutions in Troubleshooting Mail and Calendar apps for Windows 10. Once you have a stable and consistent network connection, you can go ahead and follow the other advanced troubleshooting solutions. For both systems, after making changes, restart Outlook to ensure the new settings take effect.

• If your Outlook Calendar suddenly stopped syncing, you need to read this article.
• If none of these steps work, consider clearing your Outlook cache or running the calendar repair tool to fix any underlying data issues.
• Reconnecting imported calendars (Outlook, iCloud, or Google Calendars) using the Google Calendar app on your iPhone or iPad is not possible.
• An app password is used instead of your normal account password for apps that don't support two-factor authentication.
• If you’re using a shared calendar, ask the owner to re-share it with you, as sometimes permissions can become corrupted.
• Remember, changes to these settings might require you to restart Outlook or even your computer to take effect.
• By repairing or reinstalling MS Office, you can fix any issue with the Outlook program files that might be damaged, leading to the synchronization issues in the Outlook program.
• Outlook calendar synchronization ensures that your schedule remains up-to-date across all your devices and platforms.
• If you don't see a calendar option or your account was listed as IMAP, tap More and select Remove account.

Why has my calendar stopped syncing?

In this section, we’ll explore common troubleshooting sync steps specific to outdoor signs for business smartphones and tablets, covering both iOS and Android devices. Reconnecting the Calendar to Outlook only works if the calendar you’ve imported into Outlook is another Outlook Calendar. For iCloud and Google Calendars, the issue will persist, as calendar updates will take up to 24 hours to reflect in Outlook Calendar.

How to Check if Shared Calendar is not Syncing with Outlook?

If none of the steps above work, the last resort is to delete all Outlook Calendar data. This will delete all your Outlook Calendar data, including login details, preferences, and settings. Please note that the exact wording and layout can vary depending on your device's make, model, and Android version, but these steps should guide you in the right direction.

Which email app are you using?

Using a Calendar Sync Tool you won’t have to troubleshoot why your Google Calendar is not syncing with Outlook, or manually sync them. If you’ve shared a Google Calendar with an Outlook Calendar, updates in Google Calendar take up to 24 hours to reflect in Outlook Calendar. If none of the above steps work, you may need to troubleshoot further or seek additional support from Microsoft or a qualified IT professional. My theory is that there may be some work stations that have a long uptime and as a result finding it difficult to resolve sync services. We’d (IT Support) had a play around ourselves, and it doesn’t seem to be a web app or desktop app issue. If you don't see a calendar option or your account was listed as IMAP, tap More and select Remove account.

NEWS EVENTS

If your primary Outlook Calendar account is not syncing, you can try to remove the account from your device, and add it again. Google Calendar not syncing with Outlook is not fixable by switching any settings in Google Calendar or Outlook. The only way to fix Google Calendar not syncing with Outlook Calendar is through the use of a Calendar Sync tool. Calendar Sync Tools use the official Outlook and Google Calendar API to automatically sync calendars. If your Outlook Calendar suddenly stopped syncing, you need to read this article. Let’s go over how to fix Outlook Calendar not syncing, so your schedule is synced across all your calendars.

Resolve sync issues in Mail and Calendar apps in Windows 10

First, ensure you have the necessary permissions to view and edit the calendar in question. Check your send/receive settings to make sure Outlook is set to update frequently enough. Verify that you’re not in offline mode and that your internet connection is stable. If you’re using a shared calendar, ask the owner to re-share it with you, as sometimes permissions can become corrupted.