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Virtual POS (VPOS) online payment interface screenshot

Merchant & POS

What is VPOS (Virtual POS)?

VPOS (Virtual POS) is the software-based, security-enhanced equivalent of the physical POS devices used for card payments at merchants, used for purchases made over the internet. It is also known as Virtual POS. VPOS is not issued to individual customers.

Screenshot illustrating a prepaid card and its features

Credit Card

What is a prepaid card?

A prepaid card is a customized card, with or without a chip, not linked to a bank account and without a credit limit like credit cards, letting you spend only the amount loaded onto it.

Customer making a contactless payment by tapping a card on a POS terminal

Contactless

What Is a Contactless Transaction?

A contactless transaction is a fast and secure payment made between a credit card and a POS terminal without direct contact, without reading the card's chip or magnetic stripe. Both the card and POS terminal must support contactless transactions.

Table of chargeback reason codes by payment scheme

Chargeback

What Are the Chargeback Reason Codes by Payment Scheme?

A chargeback is the process of requesting that an amount paid by credit card be refunded, either because the goods or services paid for were not received, or because a transaction is identified as one the cardholder did not carry out.

Illustration of a multicurrency POS terminal supporting multiple foreign currencies

Merchant & POS

What Is a MultiCurrency POS?

Multicurrency POS refers to POS devices that can process transactions in foreign currencies (USD, EUR, GBP, etc.) in addition to Turkish Lira. Merchants using a MultiCurrency POS can process transactions in different currencies for international cardholders.

Table of merchant sectors where offline transactions are restricted

Merchant & POS

In Which Sectors Can Offline Transactions Not Be Performed?

An offline transaction is one approved by the card and the POS themselves, without going to any system (the card's bank or the POS's bank), when a chip card transaction is made at a POS. For this reason, some sectors considered risky are restricted.

Prepaid debit card not linked to a bank account

Debit Card

What Is a Prepaid Debit Card?

A prepaid card is a customized card that is not linked to a bank account and has no credit limit like a credit card - you can spend only up to the amount loaded onto it. Prepaid cards function just like a bank card or credit card.

Close-up of a credit card, illustrating a transaction pending in open authorization

Merchant & POS

Can an Open-Authorization Transaction Be Cancelled?

Open authorization covers the period between authorization, POS batch close, the bank's end-of-day process, and clearing. Learn which steps allow cancellation versus refund, and what a cardholder should do.

Diagram illustrating the EMV Tag-Length-Value (TLV) data structure used in card transactions

Online & Authorization

What are EMV Tags?

In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.

Table listing ISO 8583 Field 25 (POS Condition Code) values

ISO 8583

ISO 8583 Field Descriptions (F25)

F25 - POINT OF SERVICE (POS) CONDITION CODE is the field that defines the condition under which a POS transaction was performed. Possible values include 00 Normal presentment, 01 Customer not present, 02 Unattended terminal, and more.

Shared POS device used for processing multiple banks' card transactions

Credit Card

What is a Shared POS?

A Shared POS is a POS solution that allows the credit card applications of multiple banks, such as installments and loyalty points, to run on a single POS device. It automatically recognizes the cards of banks loaded on it and routes the transaction accordingly.