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"reconciliation"

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Illustration of an ATM cash dispenser showing the retract and reject cash compartments

ATM

What Is Retract?

Retract is a term used in ATM systems. When cash already presented to the customer is not taken, it is diverted into a compartment called retract, as opposed to the reject compartment used for unusable banknotes.

Table showing payment system response code values that indicate transaction approval

Online & Authorization

What Are the Response Code Values That Mean Approval?

In payment systems, the result of a transaction is sent in the F39 field. The F39 value is the code indicating the transaction's approval or decline status. It is a 2-character alphanumeric code. When approved, the value is usually 00.

Diagram illustrating a Not Onus transaction between the issuer and acquirer

Merchant & POS

What does Not Onus mean?

Not Onus is a payment systems term meaning "Not On Us": a situation where the card-issuing bank and the POS/ATM (acquiring) bank differ. Such transactions are settled through clearing between the two banks.

Istanbulkart transit and payment card

Credit Card

Istanbulkart: Both Transit Card and Payment Card

When I think back to the Akbil I used when I first arrived in Istanbul, I think it's fair to say that Istanbulkart has undergone a very significant transformation. Users can now track activity, top up and view balances right from their phones.

Table of Reimbursement Attribute values used in the clearing process

Clearing

What is Reimbursement Attribute?

DE03/Reimbursement Attribute carries the Reimbursement Value of a transaction. BKM uses this information as the basis for calculating interchange fees and charges between member banks.

ATM operator menu screen used to perform a cassette reset

ATM

What Is ATM Cash Reset?

ATM cash reset is the process of reconciling the values in all of the ATM's cassettes and in the ATM's memory, zeroing out the ATM balance. The reset is carried out from the operator menu inside the ATM, via End of Day Operations.

Barcode label used for courier card delivery

Courier & Delivery

What is a Barcode Number for Card Distribution?

Barcode numbers are used in many areas of payment systems, such as credit card statements and courier card distribution. This article focuses on the barcode used for courier delivery of cards.

Example of RRN printed on a POS receipt used to trace ISO 8583 transactions

ISO 8583

ISO 8583 Field Descriptions (F37)

F37 - RETRIEVAL REFERENCE NUMBER: a 12-digit alphanumeric value generated by the Acquirer that initiates the transaction. It must be printed on the POS receipt or ATM slip. RRN is the reference number that allows a transaction to be located.

Illustration representing electronic payment systems

Payment Systems

What are Payment Systems?

Let's talk about payment systems, which we have heard more about since the internet entered our lives, and the basic structures behind them. The first credit card in the world was used in America in the 1920s.