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Diagram illustrating ISO 8583 Field 12 local transaction time

ISO 8583

ISO 8583 Field Descriptions (F12)

DE 12-TIME, LOCAL TRANSACTION: the local time at which the transaction took place at the point of transaction (ATM, POS). 6 digits, hhmmss format. F12 differs from F7 (Transmission Date and Time).

Diagram illustrating the ISO 8583 F7 transmission date and time field

ISO 8583

ISO 8583 Field Descriptions (F7)

F7 - TRANSMISSION DATE AND TIME: the field containing the moment the initiating party started the transaction. It is a 10-character numeric value in MMDDhhmmss format.

Reference table of ISO country codes including two-letter, three-letter, and numeric codes

ISO 8583

ISO Country Codes

In ISO messaging standards, country codes sent in fields such as F43, F19, F20, and F21 must follow a specific standard. Below is the country code list and details used for ISO, including 2-character, 3-character, and numeric codes.

Illustration representing credit and debit card fraud

Credit Card

Credit Card/Debit Card Fraud

Credit card fraud is generally committed using the card itself, using card details without the card, via excess or duplicate withdrawals, or by seizing identity information. ATM card trapping is common, since ATMs hold the card during the transaction.

Merchant choosing between a bank POS and a virtual POS service

Merchant & POS

Is it mandatory to work with a bank to get a POS terminal?

The answer depends on the type of POS terminal. A physical POS (GPRS, Dial-Up, IP, or cash-register POS) requires working with a bank. A virtual POS can also be obtained from a payment institution without a separate bank agreement.

Diagram of basic payment systems terminology including issuer, acquirer, and authorization

Payment Systems

Basic Terms Used in Payment Systems

Although many important terms are used in payment systems, the expressions below are its cornerstones — the ABCs of payment systems, so to speak. Issuer: the credit card company, usually a bank, that issues the card and tracks debt, credit, bonus points, and other services for the customer.

Dictionary and glossary book representing payment systems terminology

Merchant & POS

Terms that should be in your payment systems glossary

Below are the definitions of the cornerstone terms of payment systems, as established by the Banks Association of Turkey (TBB): debit card, credit card, merchant, cardholder, and more.

TROY card scheme logo

Credit Card

What Is TROY?

TROY, announced by the Interbank Card Center (BKM) in September 2015, is a card scheme like VISA, MasterCard, or AMEX. It takes its name from the initials of its Turkish slogan meaning 'Turkey's Payment Method'.

POS terminal device used for processing card payments

Merchant & POS

What is MIV (Central Merchant Database)?

MIV stands for Central Merchant Database. The MIV Module collects information on merchants across Turkey and the TRNC that have card acceptance agreements with BKM members, and assigns each merchant a unique number for tracking purposes.

Hand holding a credit card near an ATM screen used to check card debt

Credit Card

How Can I Check My Credit Card Debt?

In the past, banking transactions could only be carried out at branches, but with the advance of technology, customers can now complete their transactions through many channels without visiting a branch. Checking credit card debt is one of these.

Contactless payment with a card on a POS terminal

Contactless

7 Reasons to Make Contactless Transactions

It is important to use contactless cards to prepare our payment habits for the future. In Turkey, one in every 3 cards and one in every 4 POS terminals is contactless-enabled, yet usage remains around 5%.