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Payments & Banking Technical Explainer

What is payment processing?

Payment processing is the chain of system events that transmits, checks, routes and records a payment instruction. It is not one universal event or timestamp.

Different organisations observe different stages

A customer application, issuer, gateway, processor, acquiring institution, receiving bank or wallet may each create records. Their times can refer to submission, authorisation, onward routing, posting or settlement.

Processing can validate details, apply risk controls, convert currency, reserve funds and generate references. A transaction may remain pending, decline, reverse or settle later. Providers also use “processed” differently, from accepted for handling to completed.

Reconcile the event chain

Preserve provider names, transaction and linked references, status and response codes, amounts, currencies, times and merchant or beneficiary details. Ask each provider what role and stage its fields represent.

Apparent inconsistencies may be accurate views of separate stages. Map them without forcing one label or time to describe the whole payment.

The point to remember

Reconstruct processing as linked provider events, using each system's definitions and identifiers to explain status and timing.

Reference: PAY-016Payments & Banking