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Diagram illustrating the ISO 8583 field 32 structure

ISO 8583

ISO 8583 Field Descriptions (F32)

F32 - ACQUIRING INSTITUTION IDENTIFICATION CODE: the 11-digit acquirer bank ID. The values it can take for domestic transactions and by card brand include Visa, MasterCard, UnionPay, Discover and JCB formats.

European Payments Initiative (EPI) overview graphic

Payment System Institutions

What is EPI (European Payments Initiative)?

The European Payments Initiative (EPI), formerly known as PEPSI, is an ECB-backed payment integration initiative aiming to build a pan-European payment system and interbank network to rival Mastercard and Visa. Its founding members include BBVA, BNP Paribas, CaixaBank, Commerzbank and others.

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.

Virtual POS payment system diagram for online card transactions

Merchant & POS

What Is Virtual POS?

Virtual POS is the software-based, security-enhanced equivalent of the physical POS devices used for card payments at merchants, designed for online shopping. It is not issued to individual customers, only to sole proprietorships, companies, or foundations and associations.

Istanbulkart transit and payment card

Credit Card

Istanbulkart: Both Transit Card and Payment Card

When I think back to the Akbil I used when I first arrived in Istanbul, I think it's fair to say that Istanbulkart has undergone a very significant transformation. Users can now track activity, top up and view balances right from their phones.

BKM Express mobile payment application illustration

Credit Card

What is BKM Express?

What is BKM Express? BKM Express is a technical infrastructure solution developed by BKM that lets you pay securely for online purchases without sharing your card's full details. What are the advantages of BKM Express? To register your card you don't need to enter all…

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.