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Payment Systems
In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.
ISO 8583
F35 TRACK-2 DATA: The values printed to the card's Track 2 data in ISO 7813 format, including field separators and start/end sentinels, but excluding LRC (Longitudinal Redundancy Check) characters. It is 37 characters long.
Payment Systems
TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.
Laws & Regulations
The articles of the Regulation on the Accessibility of Banking Services are listed below. Published in the Official Gazette on 18 June 2016 (issue 29746), banks must strictly comply with them. PART ONE Purpose...
Online & Authorization
A reference guide to authorization response codes seen on POS and ATM transactions, with plain-language explanations of what each code means and what to do about it.
Merchant & POS
In daily credit card purchases, the POS produces two receipts: the Customer Copy and the Merchant Copy. The cardholder gets the customer copy; the merchant keeps its own copy by law.
Merchant & POS
QR Code is a two-dimensional barcode system developed by Denso Wave, a Toyota subsidiary operating in Japan. Its name comes from the initials of Quick Response. Its content can be any data, including text, a website address, or a video link.
ISO 8583
F19 — Acquiring Institution Country Code: the country to which the location of the acquiring bank's device (ATM, POS, etc.) belongs.
ISO 8583
F32 - ACQUIRING INSTITUTION IDENTIFICATION CODE: the 11-digit acquirer bank ID. The values it can take for domestic transactions and by card brand include Visa, MasterCard, UnionPay, Discover and JCB formats.
Merchant & POS
Terminal Verification Results (TVR): a sequence of bits produced when a terminal reads an EMV card, based on logical checks such as an expired card. This data object is used to decide whether a payment transaction should be accepted online, declined, or allowed to proceed.