Ep 5: Key-values: how header bidding talks to Ad Manager

How does Ad Manager know a Prebid bid was two dollars ten?

A key value is a label on the ad request, a name plus a value.

Prebid.js runs its auction in the browser. Say the top bid is two thirteen. By default Prebid rounds it down to a ten cent bucket, two point one zero. Then it sets key values. HB PB equals two point one zero, the price. HB bidder names the winner. GPT sends them with the ad request. In Ad Manager, a Price Priority line item targets HB PB two point one zero, at a two dollar ten rate. It competes at priority twelve against AdX. If it wins, Prebid’s creative renders the winning ad.

Open one Prebid line item today. Check that its key value matches its rate.

Next, dynamic allocation, how AdX competes with your line items.