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Illustration representing an AI agent making a payment

Agentic Commerce

Agentic Commerce Series – Part 4

Are We Ready to Give an AI Agent the Authority to Make Payments? Having long looked at complaint and dispute processes in payment systems, I think granting an agent payment authority is far different from research or product selection.

Illustration of customer-based contactless card limit management

Payment Systems

Can a Card's Contactless Limit Be Managed on a Per-Customer Basis?

Contactless payment has greatly improved the user experience, yet its fixed transaction limit is a common complaint. Can this limit be managed dynamically per customer? This post covers the current situation, technical and regulatory requirements and the outlook.

Diagram illustrating the appeal stage of the card dispute and chargeback process between issuer, acquirer and card scheme

Payment Systems

What Is an Appeal? What Does It Mean in Payment Systems?

In payment systems, an “appeal” is the process of objecting to the outcome of a transaction dispute. It is usually discussed alongside chargebacks, but it plays a critical role in interbank dispute resolution, when a party asks the card scheme to re-evaluate a concluded decision.

Illustration of ChatGPT Instant Checkout and the Agentic Commerce Protocol

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.

Shopper at an online checkout seeing a failed payment message because of an insufficient funds check

Online & Authorization

Why Do Your Payments Fail? How Funds Confirmation APIs Solve It

You press the pay button and the screen says the transaction failed. Behind that failure are checks on your balance and transaction security. This post explains how funds confirmation APIs work, where they apply, and the situation in Turkey's open banking.

Contactless card payment at a POS terminal

Credit Card

Contactless Payment Limit Is Being Raised

Current information: this post describes the limit that applied at the time of publication. According to a BRSA letter to banks, the PIN-free contactless transaction limit, raised to 750 TL in July 2022, will become 1500 TL from 1 July 2024.

FAST instant payment limit raised to 50,000 TL

FAST

FAST Limit Raised to 50,000 TL

The upper limit for FAST transactions, which enable fast money transfers between banks, was raised to 50,000 TL per transaction as of 21 December 2023.

Announcement graphic showing the FAST money transfer limit raised to TRY 20,000

Payment Systems

FAST money transfer limit raised to TRY 20,000

The limit for FAST transactions, which enable interbank 24/7 instant money transfers, was raised to TRY 20,000 as of 14.02.2023. This post covers the change and its impact; the figure is historical and the limit has since been raised again.

Diagram illustrating the difference between Online PIN and Offline PIN verification in card payments

Payment Systems

What are Online and Offline PIN? Can PIN be bypassed?

Online PIN is verified by the card-issuing institution through the message itself, while Offline PIN is verified on the chip. This article explains the difference and when PIN bypass is allowed.