SmithCart supports passing the “AffiliateID” in the querystring to any page in your portal that you have added the Smith Affiliate Tracking module to. For more information on the Smith Affiliate Tracking module see the section titled Affiliate Tracking Module.
To pass an affiliate id in the querystring format your URL as follows:
http://www.yourwebsite.com/Default.aspx?AffiliateId=27
When the affiliate id is passed in the querystring to your store and an order is successful, SmithCart will save the affiliate id with the order giving you the ability to track affiliate sales and pay out commissions.