I have installed the tracking as per guidelines with out change in between <body></body> tags. I have used the tracking for some key pages as well. In my case the tracking was not giving results as expected, So wanted to test it myself and I clicked my own ads and tried the testing and found that the tracking works for only once. If the customer views first page which has any sort of tracking including keypage tracking it registers the conversion and any further conversion including the sale is not recorded. So kindly help, as i feel conversion tracking is the most crucial in my adwords campaign.
I think that is the difference between Conversions and Transactions.
Are you using more than one type of Conversion?
If so, choose those in the Report settings. I believe the "conversion" is unique and only occurs once, but if you break it down by transactions, you should see what you are looking for. You can also add Sales count, Lead count, Signup, Pageview, and Other depending on what you choose the "conversion" to be.