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Payment Systems
Message 200 is generated for transactions initiated from POS applications, and the acquiring bank responds with message 210. Learn how 100/110 messages route approvals via the issuing bank, and common rejection reasons.
Payment Systems
If users start describing their needs instead of searching for products, one of the internet economy's most fundamental habits could change.
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.
Chargeback
Chargeback reason codes vary by card scheme. The Amex chargeback reason codes and their descriptions are listed below: American Express Chargeback Reason Codes A01 The charge you submitted did not receive a valid authorization approval code for the amount...
Credit Card
KKB was established, under banking law, to enable the exchange of all kinds of information and documents among at least five banks, and it also shares credit information about customers. The Credit Bureau of Turkey also serves deposit banks, participation banks, financial institutions, and more.
ISO 8583
F124 (Private Additional Data) contains additional information specific to the transaction, such as Card Update Failure Code and Status, cardholder name in money transfers, and keys in network management messages.
Payment Institutions & E-Money
On 7 October 2023, the CBRT amended the Communiqué on Information Systems of Payment and E-Money Institutions and Data Sharing Services of Payment Service Providers, first published on 1 December 2021. Links to the new text, a comparison table and a detailed summary of changes follow.
Payment Systems
With its announcement of 30/11/2023, the Revenue Administration published a draft Tax Procedure Law General Communiqué to complete the replacement of old-generation payment recorder devices (EN OKC) with new-generation ones (YN OKC), reduce cash use and increase card payment options.
Payment Systems
The term 'Buy Now, Pay Later' (BNPL) refers to deferring payment on a purchase to a later date. The product is delivered to the customer before any payment is made, and the customer pays afterward.
Payment System Institutions
BKM (Interbank Card Center) works through several committees: Security, Operations and Technology, Market Development, Business Development, Chargeback Rules and Arbitration, ATM Sharing, plus arbitration committees. This post outlines each one's duties.
Fraud
Fraud monitoring refers to tracking card transactions through scenarios to detect potential fraud and taking rapid action immediately before or after a transaction occurs - such as identifying a suspicious transaction, calling the customer, or temporarily blocking the card to prevent authorization.
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.