In this article, we’ll take a better check out how Prebid works in Google Ad Manager (GAM) and the way publishers can inject their own bids with a desired fixed CMP within the auction. this is often usually required when publishers want to point out their own ads or in-house campaigns below a particular minimum. Here’s an example:
Let’s say you receive approximately 10000 impressions daily, and therefore the average CPM is $3. After you ran a granular report, you found that 2000 impressions paid but $1, while you’ve got an in-house campaign that pays you a $1 fix CPM supported the Google Ad Manager impressions report.
In this scenario, you’d definitely want to prevent any ads being served that pay a CPM but $1 and run your in-house campaign on those impressions instead. you would possibly also want to use your house ads to market something from your own network and use that as a backfill if just in case Prebid or your GAM line items cannot reach a particular CPM.
HOW TO INJECT YOUR OWN BID WITH a hard and fast CPM?
The easiest and best method to inject your own bid with a hard and fast CPM is using Price Priority item settings.
Step #1: you would like to make an in-house Order and line items in your Google Ad Manager account. you’ll create just one item which will run RON otherwise you can create multiple Line items supported your custom dimensions, e.g., different devices, sections on your website, or sizes, etc. Choose Price Priority for this item , and put your required rate in there for instance $1. you’ll change the road item rate later just in case you would like to regulate the CPMs supported your custom requirements.
Step #3: Activate the order. Any impressions which will not get a CPM above your pre-defined CPM, e.g., $1, would be served together with your in-house ads.
THE FLOW OF REQUESTS IN PREBID WRAPPER AND GOOGLE AD MANAGER
While we’ve already discussed the setup, let’s take a glance at the flow of requests within the Prebid wrapper and Google Ad Manager. When you’re running Prebid and a user lands on any page on your website. there’ll be an auction within the header. it’ll call all the prebid partners and request bids from them against specific PIDs (containing all important data, like, the location or the sizes). Once bids are received, the very best bid would be selected and passed to Google Ad Manager. GAM will run its internal auction and see if there are any eligible line items which will pay above the Prebid bid. There are often three possible situations at this point:
If there are any eligible line items paying above the prebid bid and better than $1, they might be selected and served to the user.
If there are not any eligible line items in GAM that would pay above the prebid bid while the prebid bid is above $1, prebid will take that impression.
If there are not any eligible line items in GAM that would pay above the prebid bid while the prebid bid is less than $1, that impression would be served together with your in-house ad.
That means you’ve got achieved your required result that would be interpreted as below:
Prebid will only get selected if it pays above your pre-defined CPM for your in-house ads and also above the other eligible item in GAM.
Your GAM line items will only get selected if they pay above the prebid bid and also above your predefined bid.
For any impression where prebid or your GAM line items pay less than your predefined CPM, your house ads would take precedence and obtain served for that specific impression.
THE MEDIUM OF COMMUNICATION BETWEEN PREBID and therefore the AD SERVER (GAM)
One last item to notice here is that each one line items in GAM created for prebid integration are activated supported the worth of GAM key hb_pb. Key-value hb_pb is that the medium of communication between your ad server (GAM) and prebid.
If there’s no bid from prebid sent to GAM, then hb_pb key-value won’t be set, and no item are going to be selected from prebid orders.
In that case, GAM will proceed with its internal auction. If there’s any eligible item paying above your predefined CPM, it might get served. Otherwise, your in-house will take precedence.
Injecting fixed CPM bids into Prebid may be a great way of accelerating your ad revenue and ensuring you maintain CPM levels. Are you trying to optimize your ad revenue but not getting the results you want? MonetizeMore may be a Google Certified Publisher Partner who has helped many publishers optimize their ad inventory. does one want to require your ad revenue to subsequent level? check in to urge started today!