How Retailers Escape Rigid Coupon Tools and Win with MACH Architecture
https://wiki-square.win/index.php/Gamification_Mechanics_Worth_Adding_to_Your_Loyalty_Program
1. Why moving coupon logic into a MACH stack finally solves the "one-size-fits-none" problem Most legacy coupon systems act like a welded-on control panel: every change requires a plumber, a calendar window, and a lot of prayer