Payment refund sequence flow orchestrates a multi-service transaction from support console through refund, ledger, payment gateway, and email worker components. The Support Console initiates refund requests to the Refund Service, which coordinates ledger entries, payment gateway reversals, and confirmation emails across distributed services. This architecture demonstrates asynchronous payment reconciliation with audit trail logging and customer notification, critical for PCI compliance and financial accuracy. Fork this diagram on Diagrams.so to customize service names, add retry logic, or integrate your payment provider's specific API contracts. Consider adding a Dead Letter Queue between Refund Service and Email Worker for handling notification failures gracefully.