Google’s Conversion Optimiser is now out of beta stage. This service allows users to set a maximum cost per acquisition (CPA) for their Adwords account. Based on conversion history such as keyword, region, ad position etc Google will auto manage your CPC bids in the aim of getting the lowest average CPA. You have to have at least 200 conversions per month to register.
How good is the service?
What is not clear is whether Google will take into account user journeys. The CPA of generic keywords are almost always higher than on the brand terms. But many conversions on the brand terms may have started on more generic keywords. Will Google blindly bid lower bids on generic terms as it sees they have a higher CPA? Also consider that Google have focused solely on the...