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Credit Card
Pre-authorization reduces the merchant's risk by blocking part of the card's limit for a set period. Since a credit card has a defined limit, an amount can be blocked against it. ATM cards and prepaid debit cards have no such limit to block.
Merchant & POS
An operation that allows a credit card's limit to be blocked for a period, due to the nature of the product or service sold. Preferred mainly by companies in travel, tourism, and car rental.
Merchant & POS
The floor limit is the value held on the POS that determines the maximum amount for which an offline transaction can be approved. It is managed per terminal and can be updated at any time through the POS parameter management system.
Security
Before 3D Secure 2.0, let's explain what 3D Secure is. 3D Secure is a two-layer payment authentication system that protects both the cardholder and the merchant in online payments. First released by Visa in 1999, it was later adopted by other card schemes…
Credit Card
Today, as cash use steadily declines and credit card use keeps rising, using credit cards in line with one's income -so to speak, stretching your legs only as far as your blanket reaches- benefits both the cardholder and the country, as well as merchants.
Merchant & POS
These are codes placed into the terminal software by the acquirer that govern the rules for whether transactions go online or are declined, covering offline approval, offline decline, and online submission due to issuer risk...
Merchant & POS
Early Hold Release is a solution that allows merchants operating under a holdback arrangement to access their turnover held in the hold account when they need cash, before the holdback period ends. Merchants can work with banks under 3 different terms.
Security
Forgery in card payments means transactions made with card details without the cardholder's knowledge, or purchases with counterfeit or stolen cards. Merchants cannot eliminate fraud and chargeback risk, but they should aim to reduce it to reasonable levels.
Credit Card
The '12 - Invalid Transaction' error is usually returned when the issuer declines the transaction. It typically occurs when the same card is tried repeatedly at the same merchant for the same amount in quick succession.
Merchant & POS
Multicurrency POS refers to POS devices that can process transactions in foreign currencies (USD, EUR, GBP, etc.) in addition to Turkish Lira. Merchants using a MultiCurrency POS can process transactions in different currencies for international cardholders.
Payment System Institutions
Thanks to the API developed by BKM, BKM Express member merchants can automatically update the BIN lists of cards issued by all banks in Türkiye and offer installments and reward points more efficiently.
Merchant & POS
In online transactions, Opt Out is the cardholder exercising the right not to enroll in 3D Secure. It is not unlimited: only as many transactions as the issuer allows can be made without 3D Secure.