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Merchant & POS
Partial authorization lets an issuer approve part of the requested amount when the card lacks the full balance, with the rest paid another way. This post covers the technical, receipt, clearing, reconciliation, merchant and certification requirements for acquirers.
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.
HSM & Security
In the past, banking meant going to a branch. Today, most transactions run through channels such as the Internet Branch, ATM and Mobile Branch, so improving internet banking security and regularly informing customers about it is important.
ATM
ATM maintenance is essential for ATM longevity. SLM (Second Line Maintenance) covers repairs that require a toolkit and part replacement, usually without access to the ATM safe, while FLM handles simpler cash and consumable tasks.
ISO 8583
F41 - CARD ACCEPTOR TERMINAL IDENTIFICATION: the terminal where a transaction took place. An 8-character alphanumeric value generated by the acquirer bank and assigned to the POS, managed as a unique terminal number at the acquirer.
Credit Card
Although card usage today is shifting from physical use toward virtual use, physical card production, personalization, and printing remain vital steps in card manufacturing. Here are the companies that produce and personalize cards in Turkey.
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.
HSM & Security
Secure Element Issuer is the stakeholder that provides, maintains, and updates the secure element in cases where mobile payment application and card data are stored in the secure element inside a mobile phone.
HSM & Security
TPK stands for Terminal PIN Key. It is a data encryption key used to encrypt PINs for transmission between a terminal and the terminal's bank (acquirer) within a local network. Learn how TPK is used in POS and ATM devices.
Merchant & POS
Magnetic Secure Transmission (MST) is a mobile payment technology in which devices such as smartphones emit a signal that mimics the magnetic stripe on a traditional payment card, letting a physical card's POS use be imitated without upgrading terminal software or hardware.
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.
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.