I'm really new to adwords and thinking of opening an account.
Let's say I have 2 ads for the same keyword and would like to know which one is the best. The keyword doesn't show up too often ( 600 search volum in february).
My question is, what is the duration before you can decide which ad or which campaign (for similar keyword) work the best ?
Thoma.
i would advice you to decide after at least 1000 impressions for each one. After, you'll decide depending of CTR, or better of Conversions rate if available :).
Raph
