I use Outlook 2007 SP2 to open a WSS 3.0 SP1 calendar. The calendar contains recurring events. When I change one occurence of a recurring event (known as creating a recurrence exception) in Outlook, for example by changing the date of that occurence, the change appears in Outlook but cannot be made to SharePoint, even after manual synchronization. There is no synchronization error reported in Outlook.

The problem occurs only to recurring events that was imported from Exchange server. If event is created in SharePoint, it works fine.

What's more perplexing is the change sometime may propergate to SharePoint. But most of the time failed.