Tracking Lost Revenue & Lost Units in SiteCatalyst - scAdd do not Track Count of Multiple Units Added at Once
Adobe Analytics//
Passing units and revenue unnecessarily in s.products in pages other than purchase page is not a best practice, and will not be reported in analytics report. Solely relying on scAdd to track units added to the cart is definitely misleading. One can add multiple products at once..so........Better to keep track of units added to shopping cart in a separate variable + one more variable to track the revenue; preferably in the product string would be great. This will allow you yo calculate lost revenue vs actual revenue and actual units sold vs added units.
"The Revenue and Unit parameters are only valid when used in combination with the Purchase Success Event. They will be ignored in all other cases." http://blogs.adobe.com/digitalmarketing/analytics/products-variable-inside-omniture-sitecatalyst/
NEED A CONFIRMATION FROM THE EXPERTS IF MY UNDERSTANDING IS RIGHT!!!