Outlook is a widely embraced email communication platform, favored by both individuals and large organizations. Its popularity can be attributed to its user-friendly and distinctive features. Among these features is the Calendar, which allows users to schedule appointments and receive timely reminders for meetings and significant events.

Recently, a few users have voiced concerns regarding Calendar issues, specifically the disappearance of their saved calendar appointments within Outlook. They've encountered a situation where appointments they previously recorded have seemingly vanished without a trace. In this blog post, we will delve into this issue and offer a solution to address it.

Why does it happen?

This problem typically occurs when users have Outlook configured on a mobile device with synchronization settings enabled. Email client settings are generally designed to strike a balance between managing appointments and the available storage space on the device. Consequently, these settings are configured to ensure that space is never completely filled, allowing room for new appointments. As a result, older appointments may be automatically deleted to accommodate new ones. When these appointments are deleted from the user's mobile device, they are also removed from the email service, leading to the issue of missing appointments. Accidental deletion is another potential reason for appointments going missing. In both scenarios, the result is appointments disappearing from the calendar. Additionally, in a separate blog post, we cover the topic of recovering permanently deleted emails in Outlook, should you ever require that information.

How to troubleshoot this?

To fix this problem, you will need to make some changes in the settings. So, let’s discuss what all you will need to do.

  • Change the Settings in your Mobile Phone :- The solution is straightforward. You can resolve this issue by adjusting the settings on your mobile phone. Simply access the Outlook settings on your mobile device, search for the relevant option, and change the settings to retain appointments indefinitely. This adjustment will ensure that your appointments remain in Outlook without going missing.
  • Turn off Caching :- Another method to address this issue is by disabling the caching of shared folders in Outlook on Windows. This can effectively resolve the problem. Let's explore how to accomplish this:
    1. Run Outlook and go to the File option.
    2. Now, go to the Account Settings in the file menu and select Account Settings.
    3. Now, select your account and click on the Change button.
    4. Now, click on the More Settings option.
    5. In the new window, go to the Advanced tab, and look for the Download Shared Folders.
    6. Once found, uncheck the box next to it and click on Ok to proceed.

Once you have performed all of the above steps, you will need to start your system. Restart the system and check if it solves your problem.

How to recover deleted appointments and tackle PST related issues?

We've discussed the issue of missing appointments in Outlook, and it's important to note that various Outlook-related issues can arise, including PST file corruption. In situations where you need to change the PST format or migrate your PST to other email clients or webmail services, we recommend using Kernel for Outlook PST Repair. This PST recovery tool is capable to resolve Outlook PST corruption, whether they are lightly, moderately, or severely damaged. Additionally, the utility facilitates the migration of PST files to numerous other email clients and webmail platforms with just a few simple clicks. It ensures that the processed PST files retain their original quality, format, and structure. These unique features and capabilities make it a standout tool. You can try out the free trial version of the tool to experience its performance firsthand.


In this blog, we addressed the issue of appointments mysteriously disappearing from Outlook's calendar. We provided insights into why this problem might occur for users and offered solutions involving adjustments to Outlook settings, suitable for both mobile phone and desktop users. Furthermore, we touched upon the broader topic of handling various PST-related issues in Outlook, emphasizing the use of specialized software for resolving these concerns.