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Merchant & POS
A contactless offline transaction can occur. If the amount is lower than the floor limit defined on the POS and the card also allows offline authorization, the transaction can be completed offline. Offline transactions are periodically sent by the POS to the acquiring bank.
ISO 8583
F22 - POINT OF SERVICE ENTRY MODE: This field holds how the transaction was performed via the POS/ATM and the PIN entry capability of the POS device. The first 2 digits show how the transaction was performed, and the last digit (shown as x) carries the POS's PIN entry capability. Numeric...
Agentic Commerce
Points or habit? Loyalty programs are built on steering human behavior. But if an AI agent starts shopping on our behalf, do points and campaigns still work the same way?
Payment Systems
After switching to response code 70 for contactless limit-exceeded cases, we found that some overseas POS devices and acquirers did not handle it as expected. This post covers why the problem lies in the ecosystem and how to address it.
Laws & Regulations
The Visa Core Rules and Visa Product and Service Rules documents define the fundamental rules that apply to all institutions in the Visa network. They are updated regularly, and all members are expected to follow the latest version.
Merchant & POS
In EMV transactions, Application Selection is the process of choosing among the applications supported by both the card and the terminal. It is the first stage of authorization, so it is very important. This post covers the PSE and List of AIDs methods.
Security
The TBB book 'Fraud Detection and Prevention Methods in Banking' analyzes the types of fraud threatening the banking and finance sector and individuals, with examples from the world and Turkey, and offers protection recommendations. This post explains how to access it.
Payment Systems
This MASAK General Communiqué sets out the simplified customer due diligence measures that obliged parties must follow under the regulation on preventing money laundering and terrorist financing.
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
Open banking opens financial data, under the regulations and with the customer's explicit consent, to third-party service providers through standard APIs. The CBRT has published a guide on payment initiation and account information services, covering licensing and technical certification.
Payment Systems
As part of the first-phase work of the Digital Turkish Lira Project led by the Central Bank of the Republic of Turkey (CBRT), the first payments on the Digital Turkish Lira Network were successfully carried out. The CBRT will continue its closed-loop pilot tests in the first quarter of 2023.
Payment Systems
This Guide links business models frequently encountered in the payments field to the payment services listed in Law No. 6493 on Payment and Securities Settlement Systems, Payment Services and Electronic Money Institutions, and aims at uniformity in practice.