The main subject of this short description is the CPS (Cost Per Sale) campaign supervised by Paulina Kozyra. In this model, advertisers only pay when a customer purchase is made, making it a cost-effective marketing strategy. This particular campaign runs for a validation period of one month, during which all sales are tracked and validated. Notably, SEM (Search Engine Marketing) actions are explicitly prohibited in this campaign. For any queries or further information regarding this CPS campaign, Paulina Kozyra can be reached at pkozyra@tradetracker.com.