Programmatic Advertising is an automated way of inventory buying and selling. They use powerful AI & ML algorithms to decide whether to buy inventory accompanied with the data or not. The open auction method is the most used programmatic media-buying method, which is similar to the auction, which happens in real life. An advertiser will bid and the competitive amount for displaying his ad to the relevant user. Programmatic information of each served impression is tracked in the platform so that a marketer can analyze the data of consumer behavior like the site most people visit, performing creatives, CPM cost of serving the ad, so they can build an effective strategy to increase their ROI.