Blacklist - Friendly Sellers (Whitelist) The Whitelist is the opposite of the Blacklist. These are either Sellers you do not want to compete with, another of your stores or any store you consider friendly. For any seller on the Whitelist, StreetPricer will NOT: Scan for competing items/suspects - i.e. will not show on Radar Reprice against. Adding is easy, just click on the Add Whitelist button: Make sure you have the Seller ID correctly spelt, and then just Save & Close.