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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.
ISO 8583
F14 - DATE, EXPIRATION DATE: the expiration date printed on the card by the issuing bank, a 4-digit numeric value in YYMM format. See how it's checked and why the YYMM order matters.
Merchant & POS
A reader asks whether a payment request taken at a customer's request should be sent as an e-commerce transaction, and what really separates Mail Order from E-commerce authorization.
Payment Systems
The rules in this guide relate to the processing of Transactions and Payment Transactions made with Mastercard-branded cards. Here are the key definitions and where to find the document.
Online & Authorization
TLV is a data storage method used to speed up the parsing of data. For example, reading data from a card's chip at a POS and carrying it through authorization uses the TLV structure.
Clearing
The YTH (Domestic Clearing and Settlement) System handles the clearing and settlement between two banks when a transaction is made at another bank's POS or ATM with a card from a different bank. Participants submit records to the YTH system, and...
HCE
Generating a token from the card number is essential to the security of payments made with mobile devices. The level of tokenization used depends on the need and on how critical the token is. Static tokenization: the token is generated once and stored in a database.
Clearing
The Domestic Clearing and Settlement System (YTH) settles and clears transactions between two banks when a card from one bank is used at another bank's POS or ATM. Participants submit records that are cleared daily and multilaterally netted and reconciled.
Merchant & POS
Just like a car, a POS device has a brand and a model, for example Ingenico ICT220 or Ingenico ICT250. Each model differs from the others: some have a contactless reader while others may not, and screens, memory and features vary.
Merchant & POS
Contains the terminal-resident data objects (tags and lengths) that the ICC needs when processing the GET PROCESSING OPTIONS command. In short, it is the list of information the card requests from the terminal before starting the transaction.
Merchant & POS
With advances in technology, mobile phones can now be used for many functions besides calls and internet access. One such innovation is the ability to use smartphones or tablets as POS devices.
ISO 8583
F18-MERCHANT TYPE: This is the merchant's category code (MCC) information. It must contain values from the Mastercard or Visa MCC Code list. It is a 4-digit numeric value. For ATM transactions, MCC code 6011 should be sent. The role of MCC in authorization...