A combined in-store and fuel center point-of-sale
system having a first point-of-sale
system, having a checkout manager and one or more checkout terminals, and a second point-of-sale
system, having a fuel center and one or more fuel pumps, in communication with each other and with one or more primary databases containing marketing data,
consumer data, customer data, master sales data, discount data, and merchandise
product data, for generating a fuel discount at the second point-of-sale system based on first
purchasing activity at the first point-of-sale system and / or second
purchasing activity at said second point-of-sale system. The fuel discount is maintained for each customer in one of said primary databases and is based on a total purchase of products, a total purchase of product units, a total purchase amount of a
product type, time period for total purchase of products, or a tiered spending amount.