The Hidden Challenges of Keeping Coupon Data Accurate at Scale
Coupon data looks simple from the outside. A code. A discount. An expiry date. That’s it. But anyone who has worked on a coupon system knows the reality is messier. Codes break without warning. Expiry dates lie. Offers change mid-day. Merchants update terms quietly. Users get frustrated fast. At scale, accuracy becomes the hardest part...
