
Clearing
What is Chip Condition Code?
Chip Condition Code is a code carried in the F60 (Additional Data) DE14 field during clearing that shows the chip read status. The possible values and their descriptions are listed below.
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Clearing
Chip Condition Code is a code carried in the F60 (Additional Data) DE14 field during clearing that shows the chip read status. The possible values and their descriptions are listed below.

Payment Systems
TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.

ISO 8583
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.

ISO 8583
We covered the ISO 8583 basics in an earlier article. This post explains the ISO 8583 message structure in detail: every ISO 8583 message consists of three main parts - the MTI (Message Type Indicator), the Bitmap, and the Data Elements.

Merchant & POS
In the first post I explained what closed-loop payment systems are and how they differ from open-loop ones. Many of the replies I received boiled down to one question: how do these systems actually work behind the scenes once a QR code is scanned?

Merchant & POS
Response codes returned on payment transactions are critical for managing next steps. Curious which error codes trigger card capture? Under ISO 8583, codes 04, 07, 33, 34, 36, 38, 41 and 43 all result in the card being captured.

Online & Authorization
A reference guide to authorization response codes seen on POS and ATM transactions, with plain-language explanations of what each code means and what to do about it.

Chargeback
Compliance means adherence to card scheme rules. Outside chargebacks, it is how a bank that loses money because card payment organization rules were broken recovers that amount from the party that caused the loss.

Credit Card
Installment payment means dividing a product's price into a set number of equal amounts. For example, if a 100 TL product is bought in 5 installments, the cardholder pays 20 TL a month for 5 months, totaling 100 TL.

Merchant & POS
The floor limit is the value held on the POS that determines the maximum amount for which an offline transaction can be approved. It is managed per terminal and can be updated at any time through the POS parameter management system.

Credit Card
In the early years of credit cards, using the card physically was mandatory. With the internet and new technologies, we can now pay with only the card details, 3D Secure and contactless NFC payments, even without the card in hand.

Chargeback
Chargeback reason codes vary by card scheme. The Amex chargeback reason codes and their descriptions are listed below: American Express Chargeback Reason Codes A01 The charge you submitted did not receive a valid authorization approval code for the amount...