Authorizations with Card Verification Numbers {#payment-auth-cvn-intro}
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Card verification numbers (CVNs) are a required feature for the authorization service.  
The CVN is printed on a payment card, and only the cardholder can access it. The CVN is used in card-not-present transactions as a verification feature. Using the CVN helps reduce the risk of fraud.  
CVNs are not included in payment card track data and cannot be obtained from a card swipe, tap, or dip.  
CVNs must not be stored after authorization.

> In Europe, Visa mandates that you not include a CVN for mail-order transactions and not record a CVN on any physical format such as a mail-order form.

Endpoint {#payment-auth-cvn-intro_d7e16}
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Set the ccAuthService_run field to `true`.  
Send the request to `https://ics2ws.ic3.com/commerce/1.x/transactionProcessor`.