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Merchant & POS
With the introduction of chip cards into our lives, the terminal needs to verify the credit card before the transaction. So how is this verification performed? The value calculated and sent by the card is called ARQC (Application Request Cryptogram).
Credit Card
The Application Interchange Profile indicates the application functions supported by the card. The AIP values and their descriptions are given below. Where is the AIP found? The AIP is a 2-byte piece of data stored on the card, carried under EMV tag 82.
Credit Card
Although debit cards and credit cards look similar in appearance, there are fundamental differences between them, from cash advances to installments and security.
ISO 8583
DE 44 - ADDITIONAL RESPONSE DATA is used to provide other supplementary data that may be needed in authorization, as a response to the authorization message. The Card Authentication Results Code is sent in position 9, and the CAVV Result Code is sent in position 15.
ISO 8583
The card's Track 2 data is carried in this field. Track 2 data contains information such as the card number, expiry date and service code.
ISO 8583
Field 3, Processing Code, is the field that shows what type of transaction is being performed and is critical for authorization. A Sale from POS differs from a Cash Withdrawal at an ATM.
ISO 8583
F35 TRACK-2 DATA: The values printed to the card's Track 2 data in ISO 7813 format, including field separators and start/end sentinels, but excluding LRC (Longitudinal Redundancy Check) characters. It is 37 characters long.
Debit Card
Some banks offer their customers a debit card product backed by an individual or corporate credit facility. How do these products work? First, these cards are printed as unembossed (no-name) cards and delivered by courier to branch staff. A credit application…
Merchant & POS
When a transaction is made through a POS, it is recorded both on the POS itself and in the acquiring bank's authorization system. At batch close, the POS sends all its transactions to the bank, which reconciles them against its own records.
Merchant & POS
No slip printed after a POS transaction? Here's how to check whether the transaction actually went through and what steps to take if the receipt never came out.
Merchant & POS
Credit card transactions made via POS sometimes need to be reversed. These are called a cancellation (void) or a refund. What's the difference, and when does each apply?
Merchant & POS
This can occur at companies selling products from different sectors. For example, you enter a shopping mall and buy a refrigerator for 3000 TL, a dishwasher for 2000 TL, and an iron for 1000 TL, each under a different installment campaign.