CPA Ad price index with payments for customer acquisition (acquisition) per person. Or, for payments of the highest results of any action. When associated with the acquisition of new customers, or make a purchase through the ads for “Cost Per Acquisition”, who visited the site, to register as a paid member, points to the cost per part number. When people visited the “Cost Per Action”, via the ad raised some predetermined outcomes, such as registration, request, or product purchase, points to the cost per part number. Also known as PPA (Pay Per Action/Acquisition), performance based compensation and affiliate ads, is advertising on achievements made during the period may either advance bidding highest achievements and only content to pay.