API v4.14
CVV Response Codes
Card Verification Value response codes
| Code | Description | Default Behavior |
|---|---|---|
| M | Match | Approve |
| P | Not Processed | Approve |
| S | Not Supported | Approve |
| U | Service Not Available | Approve |
| X | No CVC/CVV/CVV2/CID Response Data Available | Approve |
| (empty) | No CVC/CVV/CVV2/CID Response Data Available | Approve |
| N | No match | Decline |