You experience an issue in Outlook, but that issue doesn't occur when cached mode is disabled. You see differences or mismatches between the messages that you receive in Outlook compared to those that you receive in Outlook Web App (OWA). When synchronization issues occur in Microsoft Outlook 2013 or Outlook 2010, you may experience one or more of the following symptoms. Applies to: Outlook 2013, Microsoft Outlook 2010.Synchronization issues between Outlook and Outlook Web App
