Synk keeps a log of its progress and any problems encountered while running.

By default, all loggable items are logged, and the log is not preserved when the document is closed. You may modify the log options by clicking on the "Log Options..." button.

• "Include progress status" determines whether basic progress messages like "Scanning directories" are logged.
• "Include warnings" determines whether warning messages like conflict notices are included. Warnings are issued for events that didn't interfere with the completion of the action, but which either didn't go entirely according to plan or are just somewhat abnormal.
• "Include non-fatal errors" determines whether error messages, such as those about failed copies, are included. Non-fatal errors are those which prevented a single action from being successfully executed, but which Synk was able to recover from and continue. (Fatal errors would include severe problems such as being unable to find the source directory which would prevent any further progress.)
• "Maintain log between sessions" determines whether the log is preserved when the document is closed. This allows you to see the entire history of this document up to the point when you last cleared the log.
• "Limit log size to N MB" prevents the log from growing unduly large and taking up too much disk space. When you close the document and the log is saved, the oldest entries are removed until the log is smaller than the indicated size.

The "Clear Log" and "Save Log..." buttons do just what one would expect--erase the contents of the log and save the contents of the log to a file, respectively.