A reader wonders:
I want to track conversions from my AdWords campaign by putting tracking code on the “success” page on my site. Do I need two separate confirmation pages, one with Google code and one without, to ensure that folks that just go to our site and order don’t count as though they came from a Google ad?
No, you don’t need a second confirmation page. Google’s tracking code is triggered by a visit from someone with an AdWords cookie that says, “This person came from YOUR AdWords account within the past 60 days.”
If you look at the tracking code, it contains your unique account number. So if someone comes from organic search, or a referral, or a direct type-in of the URL, they will not show up as an AdWords conversion.