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Table of Contents


Terms and Definitions

Terms

Term

Definition

Transaction

A transaction consists of a number of linked messages. At its simplest a transaction will consist of a minimum of a request message and a response message.

Payment

A payment is the equivalent to a transaction in

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. During a payment lifecycle, the state of a transaction will change, depending on the performed action. These actions may include authorization, capture, sale, cancel and refund. A payment is thereby defined as a sequence of actions.

Action

An action is an operation that changes the status of a payment when performed successfully.


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Schematic overview

The following block diagram provides a high level process overview.


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Process narrative

(1) ECR submits estimated amount and a Reference Number via OPI message protocol to the POI device

(2) POI device performs cardholder authentication, encrypts the PIN block and the PAN with the

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encryption key and forwards the authorization request via SSL through a central proxy server to CCV acCEPT

(3) CCV acCEPT routes the transaction to

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via VPN connection

(4) 

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submits authorization request to the acquirer

(5) Authorization result are transferred via notification request

Please note that authorization and notification are two distinct asynchronous processes.


Notification request

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will submit a notification request via HTTP POST in order to transfer the authorization status and transaction details to the server URL as stored in the merchant configuration.

The request will be sent in real-time. If no response

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will retry the notification once after 2 seconds of the first submission. In case that the retry fails Merchant System may actively request the status of the transaction once the system is available again.

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statictrue
nameMID
pagemid
typepage

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statictrue
namePayID
pagePayID
typepage

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statictrue
nameXID
pageXID
typepage

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statictrue
nameTransID
pageTransID
typepage

Key

FormatCND

Description

Beschreibung
RefNrans..30MUnique reference numberEindeutige Referenznummer

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statictrue
nameStatus
pageStatus
typepage

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statictrue
nameDescription
pageDescription
typepage

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statictrue
nameCode
pageCode
typepage

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statictrue
nameMAC
pageMAC
typepage

Key

FormatCND

Description

BeschreibungConfig
POSTerminalIDan..20MTerminal Identification Number assigned and linked to a specific point-of-sale (POS) terminalTerminal-Identifikationsnummer, die einem bestimmten POS-Terminal zugeordnet und damit verknüpft ist
MessageTypen2MMessage Type describing the performed action: 01=Sale, 02=Reversal, 03=CreditDer Message Type beschreibt die ausgeführte Aktion: 01=Verkauf, 02=Storno, 03=Gutschrift
DMACKSNan..20MSerial Number of the key (DUKPT) that was used to generate the DMACSeriennummer des Schlüssels (DUKPT), der zum Erzeugen des DMAC verwendet wurde
DMACan16MMessage Authentication CodeNachrichten-Authentisierungscode
CodeExtan..10OOriginal code from external payment systemOriginaler Code vom externen Zahlungssystem
AQa..5OAcquirerAcquirerX
EMVDataan..2028OEMV DataEMV DatenX
CCNrn12..19OCredit card number at least 12-digit, numerical without spacesKreditkartennummer, mindestens 12 Ziffern ohne LeerzeichenX
PCNrn16O

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card token

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-Kartentoken

X
CCBranda..22OCredit card brand (e.g. Visa, MasterCard, Maestro etc.)

Kreditkartenmarke (z.B. Visa, MasterCard, Maestro usw.)

X
CCExpiryn6OCard expiry dateAblaufdatum der KarteX
MaskedPanan12..19MMasked card number (6X4)Maskierte Kartennummer (6X4)
IBANEMVfieldan..64CIBAN, hex-coded, only available with GirocardHEX-kodierte IBAN, nur für Girocard
baseAmountn..10MAmount in its smallest currency unit of merchant’s local currency at the Point of Sale (POS)Betrag in der kleinsten Währungseinheit der lokalen Währung des Händlers am Point of Sale (POS)
baseCurrencya3MMerchant’s local currency at the Point of Sale (POS)Lokale Währung des Händlers am Point of Sale (POS)
Amountn..10CAmount in its smallest currency unit of card currencyBetrag in der kleinsten Währungseinheit der Kartenwährung
Currencya3CCardholder’s currencyWährung des Karteninhabers
dccRateValueans13CApplicable FX rate with 4 decimal places (e.g. ‘3.0245’)Anwendbarer Wechselkurs mit 4 Dezimalstellen (z.B. ‘3.0245’)
schemeReferenceIDans..64CCard scheme specific transaction ID required for subsequent credential-on-file payments, delayed authorizations and resubmssions.Spezifische Transaktions-ID des Kartenschemas, die für nachfolgende Zahlungen mit gespeicherten Zugangsdaten, verzögerte Autorisierungen und Wiedereinreichungen erforderlich ist.




Notice: The parameters baseAmount, baseCurrency, and dccRateValue will be only present when DCC was used. In this case the Amount and the Currency parameter correspond to the foreign values. For transaction that have been carried out without DCC the parameter Amount will refer to the amount in the merchant's local currency as given in the parameter Currency.


References

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supports two external references, TransID and RefNr. For POS environments the parameter TransID holds a unique identifier from CCV acCEPT. Thus, the merchant may submit a unique reference via RefNr to
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.

For reconciliation purposes,

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maps the parameter RefNr against suitable elements in the corresponding acquirer protocol in order to make sure that values are shown in the electronic merchant statements (e.g. EPA file). As RefNr is an optional element,
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automatically reverts to the TransID if RefNr is not given in the request message.


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Merchant may transfer his Reference Number in the OPI protocol to the acCEPT server. CCV will map this element against the

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parameter RefNr.

Please note that acquirers do have different size limits for references that can be submitted depending on the message protocol and host capabilities.

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Acquirer

Protocol / Protokoll

Size limit / Größenlimit

ConCardis

GICC

30

JPMorgan Chase

ISO8583

22

American Express

GICC

30

AirPlusGICC30
WorldpayAPACS20




Status inquiry

In order to inquire about the status of a payment via a Server-to-Server connection, please use the following URL:

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getStatus.aspx


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Key

Format

CND

Description

Beschreibung
RefNrans..30MMerchant’s unique reference number. Reference used at the Point of Sale (POS) Eindeutige Referenznummer des Händlers. Am Point of Sale (POS) verwendete Referenz.

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Parameters for status inquiries via socket connections


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statictrue
nameMID
pagemid
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nameStatus_OK_FAILED
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Key

FormatCND

Description

BeschreibungConfig
LastStatusan32MPayment status which can be either of the following: AUTHORIZED, FAILED, CAPTURE_REQUEST, CREDIT_REQUEST, OK (=captured)Zahlungsstatus, der folgende Werte annehmen kann: AUTHORIZED, FAILED, CAPTURE_REQUEST, CREDIT_REQUEST, OK (=gebucht)
LastXCoden8OResponse code of the most recent payment actionAntwortcode der letzten ZahlungsaktionX
LastXAmountn..10OAmount of the most recent payment actionBetrag der letzten ZahlungsaktionX
XIDan32O

Identifier of the most recent payment action assigned by

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Vom

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vergebene ID der letzten Zahlungsaktion

X
AmountAuthn..10MSum of authorized amountsSumme der autorisierten Beträge
AmountCapn..10MSum of captured amountsSumme der gebuchten Beträge
AmountCredn..10MSum of refunded amountsSumme der gutgeschriebenen Beträge
CCNrn12..19OCredit card number at least 12-digit, numerical without spacesKreditkartennummer, mindestens 12 Ziffern ohne LeerzeichenX
CCBranda..22O

Credit card brand (e.g. Visa, MasterCard, Maestro etc.)

Kreditkartenmarke (z.B. Visa, MasterCard, Maestro usw.)X
CCExpiryn6OCard expiry dateAblaufdatum der KarteX
MaskedPanan12..19MMasked card number (6X4)Maskierte Kartennummer (6X4)
IBANEMVfieldan..64CIBAN, hex-coded, only available with GirocardHEX-kodierte IBAN, nur für Girocard
baseAmountn..10CAmount in its smallest currency unit of merchant’s local currency at the Point of Sale (POS)Betrag in der kleinsten Währungseinheit der lokalen Währung des Händlers am Point of Sale (POS)
baseCurrencya3CMerchant’s local currency at the Point of Sale (POS)Lokale Währung des Händlers am Point of Sale (POS)
dccRateValueans13CApplicable FX rate with 4 decimal places (e.g. ‘3.0245’)Anwendbarer Wechselkurs mit 4 Dezimalstellen (z.B. ‘3.0245’)
schemeReferenceIDans..64CCard scheme specific transaction ID required for subsequent credential-on-file payments, delayed authorizations and resubmssions.Spezifische Transaktions-ID des Kartenschemas, die für nachfolgende Zahlungen mit gespeicherten Zugangsdaten, verzögerte Autorisierungen und Wiedereinreichungen erforderlich ist.




Notice: The parameter baseAmount, baseCurrency and dccRateValue will be only present when DCC was used. In this case AmountAuth, AmountCap and AmountCred are given in the cardholder's currency. For transaction that have been carried out without DCC all Amounts refer the merchant's local currency.


Code Listings

Brands

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Code

Brand / Kartenmarke

VISA

Visa

MasterCard

MasterCard

Maestro

Maestro

AMEXAmerican Express
DinersDiners Club
DiscoverDiscover
AirPlusAirPlus Corporate Accounts (UATP)


Acquirer

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Code

Acquirer

CON

Concardis

CHASE

Chase Paymentech

AME

American Express

AIRAirPlus
WLPWorldpay