Sync Services: Advanced troubleshooting for contact and calendar syncing

Learn advanced troubleshooting steps for: issues involving syncing contacts, contact groups, or calendar events with your Mac issues syncing third-party mobile devices and applications Important: This article does not apply if: You have not already attempted to fix your syncing issue using Reset sync history. You are syncing an iPhone, iPad, or iPod with a Windows computer, follow iPhone, iPad, iPod touch: Troubleshooting contact and calendar syncing via USB on Windows if you are using Microsoft Outlook For more advanced steps, see Advanced troubleshooting for Sync Services on Windows with Microsoft Outlook 2003, Outlook 2007, or Outlook 2010.