It's possible that there is an issue with the Exchange server that is causing the calendar updates to not be properly synced between the sender and the recipient. This can happen if the server is experiencing technical difficulties or if there is a problem with the network connection.
There are a few things you can try to troubleshoot the issue:
- Check the Exchange server status: Make sure that the Exchange server is online and functioning properly.
- Check the network connection: Make sure that the network connection is stable and that there are no issues with connectivity.
- Check for updates: Make sure that the Exchange server and Outlook clients are up to date.
- Check for conflicting software: Some other software may be interfering with the calendar updates. Try disabling or uninstalling any anti-virus or security software temporarily to see if that resolves the issue.
- Check for permissions: Make sure that the users who are reporting the issue have the necessary permissions to access and update the calendar.
- Check for the conflicting calendar: Conflicting calendars can cause issues with calendar updates. Try to find and merge the conflicting calendars.
- Check the Outlook cache: Sometimes, the issue can be caused by a corrupted Outlook cache. Try clearing the cache and restarting Outlook.