So why are RSAs opening up a new inventory of search terms in the Industry Email List first place? Remember that Google Ads is an auction where the order of ads is determined by ad rank, which is a function of CPC bid, Quality Score, and other factors Industry Email List that impact the CTR, such as the use of additional features such as ad extensions. Each time a search occurs, a new auction is started. While an advertiser's CPC bid cannot change from auction to auction,
QS can change drastically based on Google's Industry Email List machine-learning Quality Score system, whose job it is to predict the likelihood that an ad will get a click (generating a CTR). This probability is significantly affected by the link between the query and the ad. And when the QS system is limited to a handful of static ETA ads, it may not be able to choose one that is good enough to have the QS needed to get the ad to Industry Email List show on the page. But when the ad group contains an RSA, the system may try to find a combination of components that will have a high QS for that particular search.
When it succeeds, the ad is suddenly eligible Industry Email List to participate in more auctions, giving it access to new inventory. So it's not so much that Google unlocked new inventory that didn't exist before. Instead, machine learning helped find a way to create an ad that was relevant enough to access the inventory that was always there. is therefore not so Industry Email List much that Google has unlocked a new inventory that did not exist before. Instead, machine learning helped find a way to create an ad that was relevant enough to access the inventory that was always there.