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Engineering in practice.

Follow a decision through a system: what the user sees, what the software records, and how an operator can recover when the outcome is uncertain.

TECHNICAL DEMONSTRATION · FINTECH & PAYMENTS

One payment. Two checkout requests.

A simulated provider accepts a payment, but its reply never reaches checkout. When the customer tries again, how can the merchant establish what happened?

Explore the recovery design

Questions the walkthrough answers

How does checkout recognize a retry of the same payment?
What prevents a duplicate confirmation from releasing an order twice?
When should an unresolved payment reach a person for review?