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HCE
A tokenized card number replaces a physical card number so transactions can be carried out securely. It is generated by the TSP (Token Service Provider), used by the cardholder or merchant, and travels across the payment systems network.
Merchant & POS
Contains the EMV steps performed by the Terminal in a transaction. The TSI fields, their possible values, and descriptions of the values are shown below.
ISO 8583
Fields F4, F5, F6, F49, F50, and F51 are the Amount and Currency fields sent in the authorization message. For example, for a 300 Euro transaction, the amount and currency information sent in these fields is as follows.
Credit Card
As credit cards become more and more a part of our lives, we now make almost all our purchases without cash. We inserted our card into the merchant's POS. We made a 100 TRY sale transaction. We received a receipt confirming it was successful.
HCE
Token types vary depending on the verification method used in a transaction. In offline transactions, general checks are performed by the mobile app and card reader without any verification in the card system. In online transactions, token verification is sent to and verified by the issuer.
Clearing
The clearing system settles a transaction between two participants when a card from one bank is used at another bank's POS or ATM. Learn about the incoming and outgoing files used in interbank clearing.
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...
Payment Systems
Contactless payment has greatly improved the user experience, yet its fixed transaction limit is a common complaint. Can this limit be managed dynamically per customer? This post covers the current situation, technical and regulatory requirements and the outlook.
Payment Systems
In payment systems, an “appeal” is the process of objecting to the outcome of a transaction dispute. It is usually discussed alongside chargebacks, but it plays a critical role in interbank dispute resolution, when a party asks the card scheme to re-evaluate a concluded decision.
Payment Systems
The rules in this guide relate to the processing of Transactions and Payment Transactions made with Mastercard-branded cards. Here are the key definitions and where to find the document.
Payment Systems
A shared POS is a bank or institution terminal that can host more than one application. This post covers the software, APN and authorization steps, and the key test scenarios to cover in a shared POS project.
Credit Card
Banks must go through a costly, arduous process to issue cards (issuer) and accept cards (acquirer), paying high entry fees to international license providers and local organizations such as BKM.