To fix the issue, please try each of the following solutions in order. Remember, the repair process may take some time, especially for accounts with large amounts of data. Use the OST Integrity Check Tool (Scanost.exe) to check your .ost file for inconsistencies. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted .ost file. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. You can check the error message to find the cause behind the sync issue and fix it.


Troubleshooting Outlook Calendar Sync Problems: Quick Fixes Inside

If the issue is resolved, it indicates that your antivirus software or Firewall is interfering with Outlook. Outlook calendar synchronization ensures that your schedule remains up-to-date across all your devices and platforms. Unfortunately, sync issues are more common than one might expect, leading to missed appointments, scheduling conflicts, and unnecessary stress.

In the following sections, we’ll dive into specific solutions to get your Outlook calendar syncing smoothly again.If you have problems when you try to open your .ost file, you can use the Inbox Repair tool (Scanpst.exe) to diagnose and repair errors in your .ost file.If you haven't installed alternative security software, you should temporarily turn off Windows Defender Security Center.Whether you’re managing personal appointments or coordinating team meetings, a synchronized calendar ensures that everyone is on the same page, literally and figuratively.It can be time-consuming but is sometimes necessary to resolve persistent issues.The solutions outlined in this article, from simple checks to more advanced fixes, address most of these issues.Understanding these aspects of shared calendar syncing can help users anticipate potential issues and take steps to minimize conflicts.
Troubleshooting steps for Microsoft Outlook calendar not syncing

The tool compares items and folders in the file and in your mailbox and tries to reconcile synchronization differences between the files and the mailbox. The OST Integrity Check Tool does not change your mailbox on the Exchange Server. The tool records any differences in a scan log so that you can see what differences the tool found and resolved. The scan log also identifies any situations that the tool could not resolve and that you must fix manually. During the scanning process, security applications, like antivirus software or Windows Firewall might Fix outlook stuck on loading profile lock the Outlook data file, leading to the sync issues. To check if the security application is causing the issue, you can temporarily disable the antivirus program or Firewall and then update the folders.


This device doesn't meet the security requirements set by your email administrator

When synchronization issues occur in Microsoft Outlook or in Microsoft Outlook Web App (formerly Outlook Web Access), you may experience the following symptoms. Now, manually sync your mailbox using the Update Folder button under the Send/Receive tab. Check with your email provider for instructions about how to create an app password for your email account.
Solutions to Fix the Sync Issues in Outlook

You can experience sync issues in Outlook due to poor or no network connectivity. So, first check if your internet connection is stable and working properly. If the connection is slow or inconsistent, you can restart the router or contact your internet provider/IT admin for help. Sometimes an error appears in the Mail and Calendar apps when the apps try to sync new email or calendar events. By leveraging these features, teams can significantly reduce the occurrence of sync issues and improve overall calendar management efficiency. Shared calendars in Outlook are a powerful tool for team collaboration, but they can sometimes encounter sync issues.



Remember, creating a service ticket usually requires admin privileges. If you’re not an admin, you’ll need to contact your IT department to create a ticket on your behalf. Remember to restart your device after installing updates to ensure all changes take effect.