Merchant & POS
Can I Make Transactions with Any Card on a POS Terminal?
To accept a card brand such as Mastercard or Visa, a POS must be certified for that brand. Which brands a POS accepts is the bank's decision.
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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.
Closed-Loop Payments
Is Starbucks Selling Coffee, or Building an Ecosystem? | Closed-Loop Payments #4
Is Starbucks really selling coffee, or building an ecosystem? Prepaid balances, a loyalty program and customer data turn a coffee chain's payments into a closed-loop economy, a very different model from Istanbulkart.
Payment Systems
What Are Closed-Loop Payment Systems? The Hidden Side of the Payments World | Closed-Loop Payments #1
The Hidden Side of the Payments World. The words a person working in the payment systems industry hears most over a career are probably Visa, Mastercard, POS, debit card, virtual POS, acquiring and card issuing. Frankly, my own career did not unfold very differently from that journey...
Credit Card
On the Issue with Visa Contactless Transactions Abroad...
From the outside, Visa contactless looks simple, but once the limit is exceeded and PIN comes into play it gets deeper. Why do response codes 65 and 70 behave so differently on POS devices in different countries, such as the Netherlands and Saudi Arabia?
Payment Systems
Where Does the Mill's Water Come From? How Banks Really Earn from Credit Card Campaigns
How do banks fund so many points, bonuses, and discounts? This post explains the credit card profitability model: merchant commissions, interchange, interest income, installments, and why campaigns are an investment in transaction volume rather than a cost.
Merchant & POS
What Is the “Merchant Data Standards Manual”? How Can I Access It?
Visa's Merchant Data Standards Manual covers classification, identification and data standard requirements for merchants, payment facilitators and marketplaces, including merchant naming, location and MCC rules. Here is what it contains and where to find it.
Merchant & POS
Offline PIN Counter = 0 Scenario: Who Is Liable for Transactions Approved Without a PIN?
In EMV-based debit card transactions, PIN verification is decisive for both security and liability. What happens when a card that only supports online PIN is sent to the issuer without a PIN, and the issuer approves it? Who owns the risk?
Online & Authorization
Shopping Directly from ChatGPT: A New Era with Agentic Commerce
OpenAI and Stripe announced the Agentic Commerce Protocol (ACP), with Instant Checkout live on Etsy and Shopify in the US. What this means for payment facilitators and e-commerce platforms, and what may come beyond one-click checkout.
Payment Institutions & E-Money
Amendments Made to the Communiqué on Information Systems of Payment and Electronic Money Institutions and Data Sharing Services of Payment Service Providers
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.
Laws & Regulations
Electronic Money Institutions Can Now Onboard Customers Through Remote Customer Acquisition
With the communiqué published in the Official Gazette today (4 November 2023), electronic money institutions will be able to onboard customers remotely, a sign that they will play a bigger role in our lives while improving customer satisfaction and speed.
Payment Systems
I Want to Establish an E-Money Institution in Turkey. How Should I Start?
Let's start by defining e-money. In general terms, e-money is a monetary value stored on a secure technological device (such as a computer disk). E-money is a concept defined under Turkish law through legislation enacted by the BRSA (BDDK).