Im using the new "ad extensions" for a campaign I am running but I am confused about that Statistics it is showing. in the main "ad groups" tab you have your ad groups, impressions, clicks, cost, etc etc... but in the "ad extensions" tab there is also impressions, clicks, cost, etc etc.. are these seperate from the totals displayed in the ad groups tab or are they ad groups + extensions?? any help appriciated.
I don't understand your question. The ad extension stats, show just that, impressions, clicks etc for that ad extension.