When an incoming link to one of your tracked pages has been manually tagged with campaign information in the manner specified by the Google Analytics documentation, Crazy Egg processes and displays that information in the Confetti report for that page. This allows you to associate clicks with a campaign source, medium, term, etc.
You can get help embedding campaign information into your links by using Google’s URL Builder tool.
Note: Users of both Google Analytics and AdWords should be aware that simply enabling auto-tagging will not allow Crazy Egg to track campaign information. Auto-tagging does not add the campaign information to incoming URLs that our tracking script needs in order to associate a click with an AdWords campaign.