Remember, patience is key when dealing with shared calendar sync issues. Some changes may take time to propagate across all users and devices. In fact, calendar synchronization problems are among the most frequently reported issues by Outlook users. These sync hiccups can stem from various sources, including network connectivity problems, outdated software, or conflicts between different calendar services. These syncing problems usually happen because of issues like a damaged Outlook profile, poor internet connection, or a corrupted OST file. If restarting Outlook or fixing the profile doesn’t work, converting the OST file is often the next step.



Network hiccups or server problems can also disrupt the smooth flow of calendar data, leading to inconsistencies across different users’ views. Another frequent culprit is outdated software and caching problems. Lastly, the very nature of collaboration can lead to sync issues.

Check advanced mailbox settings

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.

• I do not see IMAP FOLDERS when I right click on the Inbox, and I do have it set to IMAP in the server settings.
• A large OST file can lead to performance issues and result in Outlook not syncing with the Exchange Server, disrupting your workflow.
• Remember, these processes will require you to set up your accounts again and may result in the loss of some settings.
• Sometimes an error appears in the Mail and Calendar apps when the apps try to sync new email or calendar events.
• Often, the root cause lies in incorrect sharing permissions, where users might not have the appropriate access levels to view or edit calendar entries.

Solutions to Fix the Sync Issues in Outlook

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. Try removing and re-adding the problematic calendar to reset the connection. If none of these steps work, consider clearing your Outlook cache or running the calendar repair tool to fix any underlying data issues. Often, the root cause lies in incorrect sharing permissions, where users might not have the appropriate access levels to view or edit calendar entries.

Create and Manage Outlook Contact Group: Full Guide

You can easily search for the missing items, select them, and save them in PST and other file formats, such as MSG, EML, RTF, HTML and PDF. This tool is designed to extract mailbox items from orphaned or inaccessible OST files. The Virto Calendar App for Microsoft 365 & Microsoft Teams is a powerful calendar management solution designed to enhance team collaboration and streamline scheduling processes. This app bridges the gap between various Microsoft 365 apps, providing a seamless calendar syncing experience that significantly improves team planning and coordination.

Troubleshooting Outlook Calendar Sync Issues

Understanding why these problems occur is the first step in resolving them. Remember, recreating your profile is often a last resort when other troubleshooting steps have failed. It can be time-consuming but is sometimes necessary to resolve persistent issues. I have seen this happen when LDAP on the backend takes a partial fit, but it seems apple link is not affected by it as it still works ok on my phone. Xfinity uses a backend similar to what I use to work with personally 10 years ago, so I have a general idea of it. I did stop getting outlook mail around late afternoon early evening yesterday.



Outlook calendar syncing problems, while frustrating, are usually fixable. Common culprits include incorrect permissions, network or server issues, outdated software, cached data conflicts, and account misconfigurations. Also, be mindful of potential conflicts when multiple users edit shared calendars. The solutions outlined in this article, from simple checks to more advanced fixes, address most of these issues. If your Outlook calendar is not updating with meetings, it could be due to several reasons. First, ensure you have the necessary permissions to view and edit the calendar in question.

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In this section, we’ll explore how the Virto Calendar App for Microsoft 365 and Microsoft Teams can take your calendar management to the next level. We’ll delve into the benefits of using this powerful app and highlight its features specifically designed to troubleshoot sync issues. After rebuilding the OST file, it’s important to check for any missing mailbox data. If you find any missing items in the new OST file, you can recover them from the backup OST file using Stellar Converter for OST. This professional OST to PST converter tool can extract data from the backup OST file and convert How to fix email not syncing it into PST file, which you can easily import into Outlook.