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2. Online authorisation - Wikipedia

   en.wikipedia.org/wiki/Online_authorisation

   Online Authorization (OLA) is a system used to verify a transaction on a payment card (e.g. credit card). [1] The term 'on-line' refers to the real-time nature of the verification. In other words, if the account is overdrawn, in most cases, the transaction will be refused.

3. Payment gateway - Wikipedia

   en.wikipedia.org/wiki/Payment_gateway

   The credit card issuer makes a settlement payment to the acquiring bank (the next day in most cases). The acquiring bank subsequently deposits the total of the approved funds into the merchant's nominated account (the same day or next day). This could be an account with the acquiring bank if the merchant does their banking with the same bank ...

4. ISO 8583 - Wikipedia

   en.wikipedia.org/wiki/ISO_8583

   A card-based transaction typically travels from a transaction-acquiring device, such as a point-of-sale terminal (POS) or an automated teller machine (ATM), through a series of networks, to a card issuing system for authorization against the card holder's account. The transaction data contains information derived from the card (e.g., the card ...

5. Floor limit - Wikipedia

   en.wikipedia.org/wiki/Floor_limit

   The limit can vary from store to store. Floor limits have become less significant as credit cards & most of the debit cards started being processed electronically, and all transactions are typically authorized online by sending the Authorization request to their issuing banks.

6. Merchant account - Wikipedia

   en.wikipedia.org/wiki/Merchant_account

   A high-risk merchant account is a business account or merchant account that allows the business to accept online payments though they are considered to be of high-risk nature by the banks and credit card processors. They will typically pay higher transactions fees if they are accepted at all.

7. E-commerce payment system - Wikipedia

   en.wikipedia.org/wiki/E-commerce_payment_system

   There are varied types of electronic payment methods such as online credit card transactions, e-wallets, e-cash and wireless payment system. [5] Credit cards constitute a popular method of online payment but can be expensive for the merchant to accept because of transaction fees primarily. Debit cards constitute an excellent alternative with ...