American Express SafeKey Response Codes {#sa-amex-safekey-resp-codes}
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The American Express SafeKey response code is returned in the auth_cavv_result field in the response message for an authorization request.

| Response Code |                             Description                             |
|---------------|---------------------------------------------------------------------|
| 1             | CAVV failed validation and authentication.                          |
| 2             | CAVV passed validation and authentication.                          |
| 3             | CAVV passed the validation attempt.                                 |
| 4             | CAVV failed the validation attempt.                                 |
| 7             | CAVV failed the validation attempt and the issuer is available.     |
| 8             | CAVV passed the validation attempt and the issuer is available.     |
| 9             | CAVV failed the validation attempt and the issuer is not available. |
| A             | CAVV passed the validation attempt and the issuer is not available. |
| U             | Issuer does not participate or 3-D Secure data was not used.        |
| 99            | An unknown value was returned from the processor.                   |
[American Express SafeKey Response Codes]