3 pages

Iso8583

May 25, 20268 min read

Partial approvals: what terminals and hosts must do when the card pays only part

A partial approval is not a decline and not a completed sale. ISO 8583 response codes and amount fields must be read together — and the terminal must not show a green APPROVED …

Apr 20, 202610 min read

Reversals, Refunds, and Chargebacks: Decoding the Payment Lifecycle

Three words every payment professional uses — and confuses. Each lives at a different point in the settlement lifecycle, under a different protocol, with radically different …

Dec 03, 20255 min read

Nexo Protocol Adoption in Modern SmartPOS Architectures

Modern payment terminal architectures increasingly rely on standardized protocols to reduce integration costs, ensure interoperability, and simplify expansion across markets. …