PayPal Payflow Pro - 2007 Betriebsanweisung PDF herunterladen (Seite 37)

Payflow Pro Developer’s Guide 37

Performing Credit Card Transactions

Card Security Code Validation

“TRXTYPE=S&TENDER=C&PARTNER=PayPal&USER=SuperMerchant&PWD=SuperMerchant&SWI

PE[40]=;4912000033330026=15121011000012345678?&AMT=21.00”

Card Security Code Validation

The card security code is a 3- or 4-digit number (not part of the credit card number) that is

printed on the credit card. Because the card security code appears only on the card and not on

receipts or statements, the card security code provides some assurance that the physical card is

in the possession of the buyer.

N OTE: Check with your acquiring bank to determine whether they support card security code

validation.

This fraud prevention tool has various names, depending on the payment network. Visa calls it

CVV2 and MasterCard calls it CVC2. To ensure that your customers see a consistent name,

PayPal recommends use of the term card security code on all end-user materials.

IMPORTANT: To comply with credit card association regulations, do not store the CVV2

value.

On most cards, the card security code is printed on the back of the card (usually in the

signature field). All or part of the card number appears before the card security code (567 in

the example). For American Express, the 4-digit number (1122 in the example) is printed on

the front of the card, above and to the right of the embossed account number. Be sure to

explain this to your customers.

Processing Platforms and Credit Cards Supporting Card Security Code

TABLE 3.4 Processing platforms supporting card security code

Processing Platform

American

Express JCB Diners

Master

Card Visa

American Express APAC X————

Citibank Singapore (CSIN) —————

First Data Resources International

(FDI)

XXXXX

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PayPal Payflow Pro - 2007 Betriebsanweisung Seite 37