Search
14 articles found
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.
Merchant & POS
The limit that governs the maximum amount for which an offline transaction can be made on a POS terminal is called the Floor Limit. POS parameter management programs (usually GMS) maintain 3 parameters for floor limit management.
Merchant & POS
Current information: This article describes the limit as of its publication date. For the current contactless (no-PIN) transaction limit, see the linked article. The introduction of contactless transactions brought new concepts and structures.
Merchant & POS
An offline transaction is one in which the card and POS terminal approve the transaction based on their own parameters, without contacting their banks. Whether contact or contactless, the device decides whether the transaction is processed offline.
Merchant & POS
Yes. Whether a contactless transaction goes online depends on the limits on the card and the POS: the contactless floor limit, the CVM limit and the contactless transaction limit. A worked example shows how.
Contactless
Updated info: this article describes the limit at the time it was published. For the current contactless (PIN-free) transaction limit, see the linked article. A 1,000 TL contactless transaction is technically possible, but banks won't take that risk.
Merchant & POS
No. Besides the terminal data, contactless limits can also be managed from the chip data. A “Use Merchant Contactless Limits” field decides which set of limits the POS applies.
Merchant & POS
A contactless offline transaction can occur. If the amount is lower than the floor limit defined on the POS and the card also allows offline authorization, the transaction can be completed offline. Offline transactions are periodically sent by the POS to the acquiring bank.
Online & Authorization
These are codes that communicate the issuer's conditions for approving a transaction online (IAC-Online), for declining it (IAC-Denial), or for declining it when the terminal cannot go online (IAC-Default).
Merchant & POS
Terminal Verification Results (TVR): a sequence of bits produced when a terminal reads an EMV card, based on logical checks such as an expired card. This data object is used to decide whether a payment transaction should be accepted online, declined, or allowed to proceed.
Online & Authorization
In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.
Chargeback
The MasterCard and Visa chargeback reason codes that always, sometimes or never require a draft retrieval before a chargeback, with their descriptions. Includes Visa codes such as 60, 75, 79 and 81 and MasterCard codes 4801 and 4802.