How 3B+ Coupons Delivered by CodeBroker Broke Receipt Scanning — and How to Fix It in Production

https://www.bookmarkzoo.win/how-3b-coupons-delivered-by-codebroker-rewrote-the-rules-on-modular-vs-all-in-one-architecture

That moment when a receipt scanner rejects a perfectly valid purchase three times in a row can change how teams think about digital coupon programs