I am launching an online store in a month or two and need to find out how I can track. What do I mean... when people click how many of them actually purchase something and how much or what did they purchase. Thank You.
You can insert tracking code into your thankyou page (or any page you think relevant) and then Google will tell you how many people visited this page. The tracking code can be found on your campaign management tab. This wont tell you what has been sold, however.
It depends on how much you want to spend on tracking. I personally use Omniture however it's very expensive but one of the best packages on the market! DarinDotCC