# CVV Response Codes

Card Verification Value response codes

Source: https://developer.inoviopay.com/reference/cvv-codes.html  
Markdown: https://developer.inoviopay.com/reference/cvv-codes.md

| 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 |