Knowing where a converting affiliate comes from is incredibly valuable information. Until now, the referrer in the browser (or alternatively, any ?ref= value appended to the URL) was registered as the affiliate referral. While these still work, you can now use Google's URL Builder to generate a URL which SEOClerks will capture referral data from.
SEOClerks will capture: Campaign Source, Campaign Medium Campaign Name
And add this as your affiliate referrals as "Source / Medium / Name". Using this data will allow you to further identify sources, mediums and campaigns that actually convert.