I'm trying to help out a client on this one. He has a SharePoint calendar in a Team Site opened in Outlook and wants to copy certain events from his personal calendar to the SharePoint calendar. This was working fine before they added a few custom columns to the SharePoint calendar. Now he is getting this message whenever he drags an event into the SharePoint calendar:
When copying one or more items to this SharePoint List, any incompatible content will be removed during the next synchronization. The original version of each affected item will be preserved in the Local Failures folder, Do you want to continue? [Yes] [No]
Unfortunately, this isn't just a warning; the items don't end up in the SharePoint calendar. What is the "next synchronization"? Also, where on earth might this Local Failures folder be? We can't find it anywhere.