| Response Code (Integer) | Short Code | Description |
|---|---|---|
| 900 | failed_rejected_or_not_attempted | 3DS failed, was rejected, or wasn't attempted |
| 901 | authenticate_attempted | Authenticate attempted |
| 902 | authenticate_successful | Authenticate successful |
| 903 | data_only | Data only |
| 904 | out_of_scope_or_exempt | Out of scope or exempt |
| 905 | error | Error |
| 906 | not_attempted | Authenticate not attempted |
| 9999 | unknown | Unknown |