When to Use Conversion Optimizer
I received an email the other day from Adwords that recommends trying out Conversion Optimizer for a campaign of mine. This campaign receives many conversions but they are mostly from 2 ad groups (there are a total of around 15 ad groups in the campaign). Will this tool still work for the ad groups that don't receive many conversions?
Also, if we change our ads frequently, will the Conversion Optimizer still work just on our keyword conversion history to bid accordingly or does it need the combination of high converting ads and keywords to work best?
Re: When to Use Conversion Optimizer
You could always split out your ad groups to two campaigns; the two groups that convert in one and keep the rest in the other. This way you can run conversion optimizer on the converting groups (although I think you will have to wait until sufficient data is built up in the new campaign before you can actually turn on) and keep manual management of those groups that don't convert as much.
I don't think there's a problem with changing your ads as much as you need to.