How to Fix an Outlook Calendar That’s Not Syncing Updated for 2025

In Outlook, shared calendars allow multiple users to access and update a calendar, schedule events and ensure everyone stays on the same page. However, sometimes due to various issues, you may encounter a situation where your shared calendar fails to sync with Outlook. In this guide, you will learn the reasons why shared calendars are not syncing with Outlook and the solutions to troubleshoot and resolve the issue. If your Outlook calendar is not updating with meetings, it could be due to several reasons.

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.

Manually sync Google Calendar and Outlook:

If you’re using an IMAP or POP account, some of these options may not be available, and you might need to check your account-specific sync settings. It’s worth noting that sometimes, what appears to be a sync issue might actually be a delay. Outlook doesn’t always sync instantaneously, and there can be a short lag between changes made and their appearance across all devices. The most common cause of an out-of-date account is an incorrect password. If your password is incorrect, you’ll see a message asking you to update your password. If you still can’t sync your email after removing your account and adding it again, you might need to add the account using advanced setup.

• If the shared calendar is syncing, then find and remove the faulty add-in to fix the issue permanently.
• 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.
• If problems persist, consider reaching out to Microsoft Support or your organization’s IT department for more advanced troubleshooting.
• By leveraging these features, teams can significantly reduce the occurrence of sync issues and improve overall calendar management efficiency.

Fix Outlook Calendar not syncing issues using OneCal

In this section, we’ll explore common troubleshooting sync steps specific to FixTechGuide Office login guide 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.

Allow Mail and Calendar apps through Windows Firewall

However, they’re not doing anything in particular to cause the issue – just using outlook with no add ins outside of teams, so this seems to be a new bug in the past week or two. Check out our article on The Best Calendar Sync Tools to find out a comparison of the best calendar sync tools in the market. For example, date and time changes made by one user on a specific shared calendar event does not seem to sync up with other users that follow that same shared calendar. If you’re using an Exchange account that requires advanced settings, you’ll need to remove the account and add it again using advanced settings. To add the account using advanced settings, see Add an account using advanced setup. Before you begin, make sure that your device has the latest operating system and app updates.

Troubleshoot calendar and contacts in the Outlook mobile app

A problematic OST file can also cause shared calendar synchronization problems. This happens because an inconsistent OST file fails to save the calendar data properly. On restarting, Outlook should download and synchronize all mail items, and you should see the updated shared calendar.

By following these steps, you should be able to resolve most Outlook calendar sync issues, whether on desktop or mobile devices. If problems persist, consider reaching out to Microsoft Support or your organization’s IT department for more advanced troubleshooting. This article is part of our comprehensive series on synchronization issues, designed to help you navigate the sometimes tricky waters of digital calendar management. Here, we’ll focus specifically on troubleshooting Outlook calendar sync problems, exploring common causes and providing quick, effective solutions to get your schedule back on track. Below are the common reasons behind the shared calendar synchronization issues. Remember, patience is key when dealing with shared calendar sync issues.

Advancing your awareness of Microsoft 365 backup mechanisms can provide supplementary safeguarding for essential data and ensure its retrieval in the future. In the Send/Receive Settings – All Accounts window, ensure that the Calendar checkbox is checked. We’re on O365, most users are on the monthly enterprise channel (version 2404) with a couple early adopters on the Current channel.