Business situation
Repeated checkout attempts and delayed payment notices can create uncertain orders or duplicate dispatch requests.
The key decision
Agree peak demand and acceptable waiting time. Protect the unique relationship between payment, stock and order before optimizing secondary work.
How implementation works
Use idempotent requests, expiring stock holds and payment queries. Queue fulfilment and test delayed notifications, retries and recovery.
Business value and evolution
Teams can trace each transaction and decide when to limit an event. Later campaigns reuse capacity assessments and response procedures.