GO Wholesale, a food wholesale subsidiary of Central Retail, has adapted the viral 'Stick-Anything-Get-Discount' campaign from Tops (a retail grocery chain) for B2B customers across its 14 branches—a first for Thai wholesale. The strategy leverages behavioral psychology (IKEA Effect and progress bias) showing that when customers self-select discounts and accumulate rewards incrementally, they spend 15% more per receipt, revisit 16% more frequently, and customer participation grows 22%. The cross-business campaign became possible after Central Retail consolidated its food businesses (retail and wholesale) under one group in March 2026, enabling knowledge and customer data sharing. In commoditized wholesale markets where product differentiation is minimal, experience and customer engagement—not price alone—now drive competitive advantage.