Hello Friends,

The Display Campaign Optimizer is a tool that automatically optimizes both targeting and bidding to find additional conversions for your Display Network campaigns. Currently, this tool is available only to a small group of qualified advertisers, but it will become available to more advertisers over the coming months.
Optimizing with the Display Campaign Optimizer requires no work from advertisers. You simply provide us with your target cost-per-acquisition (CPA), creatives and budget, and the Display Campaign Optimizer automatically determines the appropriate placements to show your ads at the right prices. The Display Campaign Optimizer relies on Google algorithms to predict, test, and optimize targeting based on data.

Thanks