Failure After a Success Response
The hardest problems are often not red errors, but green success states.
A supplier returning success does not mean the user has a bookable, payable, explainable order result.
When an API returns success, engineers naturally relax. In hotel distribution, that is often where the real question starts: is the price still valid, is the room mapping correct, can the cancellation policy be shown, and did amount and currency come from the same source?
That is why HotelByte cannot treat supplier response as the finish line. It is one node in the technical flow. The business flow still has to verify whether the result is sellable, bookable, settleable, and explainable.
The reminder today is simple: green is not a conclusion. It is one piece of evidence. A serious system can say which layer succeeded and which layer is not yet allowed to declare victory.