| Response Code | Description |
|---|---|
| M | Security Code was matched |
| N | Security Code was not matched |
For American Express Cards, the CVV2 Response Codes include:
Y=Match
U=unable to process
N=No Match
| Response Code | Description |
|---|---|
| M | Security Code was matched |
| N | Security Code was not matched |
For American Express Cards, the CVV2 Response Codes include:
Y=Match
U=unable to process
N=No Match