Search
201 articles found
Payment Systems
According to BKM's TR QR Code Technical Principles and Rules Guide for card payments, QR code payment structures apply to EFTPOS, shared EFTPOS, ÖKC, ATMs, payment provider apps, static QR codes and virtual POS.
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.
Credit Card
The following steps should be followed when launching a new product: decide on the brand, request a new BIN from the scheme (Mastercard, Visa, Troy), define the BIN in the bank's system, generate keys in the HSM, and roll it out after certification.
Open Banking
Digital banking is talked about more every day, and with the BRSA's support in defining its scope, it is about to enter our lives. A 'digital bank' is a credit institution that provides banking services mainly through electronic channels rather than physical branches.
Chargeback
A chargeback is the refund of an amount paid by credit card to the cardholder's card when the purchased goods or services were not received, or when a transaction was not actually carried out by the cardholder.
Online & Authorization
In payment systems, the term transaction refers to the operations performed. Each transaction has its own distinct characteristics. For example, a Sale made from a POS differs from a Sale Cancellation or a Cash Withdrawal made from an ATM.
Merchant & POS
The System Trace Audit Number (STAN) is a number assigned by the third-party system (ATM or POS) to help uniquely identify a transaction. It is generated in the range 000001 to 999999. Each new authorization message needs a new STAN; retries reuse the original STAN.
Credit Card
The ISO/IEC 7810 standard is an international standard that defines the physical characteristics of cards (credit cards, ATM cards, ID cards, etc.) such as physical dimensions, bending, flame and chemical resistance, temperature and humidity resistance, toxicity, and flammability.
From My Readers
A reader asked why ATMs can't warn customers that a not-on-us withdrawal is using their overdraft. The short answer: BKM currently works only with the available limit, and banks include the overdraft in it.
Merchant & POS
In payment systems, exchange rate information is used in two places: POS devices that support foreign currency transactions, and credit card transactions made in a foreign currency (usually abroad).
Clearing
DE03/Reimbursement Attribute carries the Reimbursement Value of a transaction. BKM uses this information as the basis for calculating interchange fees and charges between member banks.
Chargeback
A chargeback is the process of requesting that an amount paid by credit card be refunded, either because the goods or services paid for were not received, or because a transaction is identified as one the cardholder did not carry out.