A Duplicate lead, or “Dupe”, is a lead that was attempted to be sent/sold/or otherwise added to your database, however you already acquired this lead in the past and did not accept it. 

If you are purchasing leads online, you have most certainly seen the same lead come through your buys more than one time. Utilizing the Data Prosper Portal, duplicate checking is built in on a per campaign basis, which means you can reject duplicate leads in real time, reducing your overall costs, and keeping a steady stream of unique prospects for your offer.