You can synchronize a calendar folder or all folders (including mail, calendar, tasks, and contacts). Synchronizing updates the local data from the server. This deletes all local items. All calendar attachments and embedded data objects will also be removed.
From the folders list, right-click on a calendar folder.
The folder properties window is displayed.
In the folder properties window, select the Advanced tab.
Click “Empty and resync.”
A dialog appears indicating that the folder is synchronizing. The dialog disappears when complete.
Click OK to close the folder properties window.
To synchronize all folders, including mail, calendar, tasks, and contacts, see Configuring Store and Logging Properties.