WebSync Log File Location WebSync Log file is needed in order to further investigate the data synchronization problems. Please copy the log after failed data synchronization. To open the Log: Windows: Right-click WebSync icon in taskbar. Select Help → Log. Mac OS X: Click WebSync icon in menubar. Select Help → Log. Log file is replaced when the file size is over 1 MB. Send the Log file to Polar Customer Care with detailed problem description.