Your competitor (Google) offers conversion optimizer with max cpa goals. Our team finds this tool very valuable, and Highly recommends Adcenter implementation.
Before Adword's offered conversion optimizer, they had eCPC, enhanced CPC, where you'll allow the system to increase your max bid on higher convertible traffic. An eCPC feature would be helpful as well
yes, it would be really helpful if Bing Ads starts Conversion Optimizer.
Currently we are using Marin as a bid management tool to achieve our cpa goals and target margins.