Payment Glossary

Understand the Language Behind Every Payment

Find clear explanations for chargebacks, payment disputes, friendly fraud, alerts, authorization, processing, acquiring, refunds, settlements, fraud reports, VAMP monitoring, and merchant-account risk.

The Payment Defender Payment Glossary turns complex payment terminology into practical definitions merchants, partners, and payment professionals can use.

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Payment Terms

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41 Payment Terms

41 Payment Terms

A

Processing and Acquiring

Acquirer

Also known as Acquiring bank

An entity, typically a financial institution, that enables merchants to accept card payments and processes those transactions under payment-brand rules.

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Payments and Authorization

Address Verification Service

Also known as AVS

A fraud-screening service that compares submitted billing-address information with issuer records and returns a match result.

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Payments and Authorization

Authorization

Also known as Payment authorization

The request-and-response process through which an issuer or authorized processor approves or declines a payment before clearing and settlement.

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Payments and Authorization

Authorization Code

Also known as Approval code

A response value returned with an approved authorization. It shows approval at that moment but does not guarantee settlement or prevent a later dispute.

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Refunds and Settlements

Authorization Reversal

Also known as Auth reversal

A message that cancels all or part of an authorization so the issuer can release the associated hold. It is not the same as refunding a settled transaction.

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C

Fraud and Abuse

Card Testing

Also known as Account testing

Patterned authorization attempts used to determine whether stolen or generated payment credentials are valid.

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Ecommerce and Subscriptions

Card-Not-Present Transaction

Also known as CNP

A transaction in which the physical card is not presented to the merchant, such as an ecommerce, app, mail, or telephone order.

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Ecommerce and Subscriptions

Card-on-File Transaction

Also known as COF

A transaction using a payment credential previously stored by a merchant or service provider with the cardholder’s permission.

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Dispute Alerts

Cardholder Dispute Resolution Network

Also known as CDRN

Verifi’s network for delivering eligible disputes to merchants for review and merchant action before a chargeback is initiated.

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Chargebacks and Disputes

Chargeback

Also known as Card chargeback

A payment reversal processed through the card-dispute system after a cardholder, issuer, or payment-network dispute condition is raised.

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Representment and Evidence

Chargeback Evidence

Also known as Dispute evidence

Transaction, order, customer, fulfillment, refund, authentication, or communication records used to address a specific chargeback claim.

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Chargebacks and Disputes

Chargeback Reason Code

Also known as Reason code

A card-network code that classifies why a payment dispute entered the chargeback process and identifies the applicable dispute condition.

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Representment and Evidence

Chargeback Representment

Also known as Representment

The process through which a merchant or acquirer responds to a chargeback with evidence supporting the transaction.

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Refunds and Settlements

Clearing

Also known as Transaction clearing

The exchange and reconciliation of transaction data after authorization and before or alongside settlement.

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Representment and Evidence

Compelling Evidence 3.0

Also known as CE3.0

Visa’s framework for qualifying card-absent fraud disputes under Condition 10.4 using specified historical transaction and identity evidence.

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E

Dispute Alerts

Ethoca Alert

Also known as Ethoca Alerts

An alert created through Ethoca’s issuer-and-merchant network that shares confirmed fraud or dispute information so a merchant can take earlier action.

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F

Fraud and Abuse

First-Party Misuse

Also known as First-party fraud

An invalid dispute involving a legitimate transaction in which the cardholder or another authorized person participated but later challenges the payment.

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Fraud and Abuse

First-Party Misuse and Friendly Fraud

Also known as Friendly fraud

A dispute on a legitimate transaction in which the cardholder or an authorized person took part but later challenges the payment through their issuer.

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Fraud and Abuse

Friendly Fraud

Also known as Friendly chargeback fraud

A dispute involving a legitimate transaction that the cardholder does not recognize, misunderstands, or later challenges despite participating in or benefiting from it.

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H

Payment Optimization

Hard Decline

Also known as Permanent decline

A decline associated with a condition unlikely to be resolved by repeating the same payment attempt without a meaningful change.

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I

Processing and Acquiring

Issuer

Also known as Issuing bank

The financial institution or authorized entity that issues a payment card or account credential and approves or declines transactions for the cardholder.

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M

Ecommerce and Subscriptions

Merchant-Initiated Transaction

Also known as MIT

A transaction initiated by a merchant under a prior cardholder instruction or payment agreement without the cardholder’s active participation at the time of payment.

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P

Payment Optimization

Payment Approval Rate

Also known as Authorization rate

The percentage of attempted payment transactions approved within a defined transaction population and period.

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Payments and Authorization

Payment Decline

Also known as Card decline

A response indicating that a payment was not approved by the issuer, processor, gateway, network, or another control in the payment flow.

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Chargebacks and Disputes

Payment Dispute

Also known as Cardholder dispute

A formal challenge to a transaction raised through the cardholder’s issuer. A dispute may be resolved before or after a chargeback is created.

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Processing and Acquiring

Payment Gateway

Also known as Gateway

Technology that passes payment data and transaction requests between a merchant’s checkout or system and its processor or acquirer.

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Processing and Acquiring

Payment Processor

Also known as Processor

A service provider that transmits and processes payment messages among merchants, acquirers, card networks, and issuers.

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Payment Optimization

Payment Retry Strategy

Also known as Decline retry strategy

A controlled approach to reattempting eligible failed payments based on decline context, timing, customer consent, network rules, and processor guidance.

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Representment and Evidence

Pre-Arbitration

Also known as Pre-arb

A later dispute stage in which a party challenges the result of an earlier chargeback or representment decision before possible arbitration.

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Dispute Alerts

Pre-Dispute Alert

Also known as Chargeback alert

An early notification of eligible fraud or dispute activity that may let a merchant investigate or resolve the case before chargeback escalation.

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