K322 code as a generic response. In case the OTP authentication fails, in your Console you will be able to check in the transaction module the reason for declination by opening the transaction detail which will have a declination subcode K326.| Authentication error code | Description |
|---|---|
| K326 | Authentication failed - Incorrect Key |
| K326 | Authentication failed - Attempts Exceeded |
| K326 | Authentication failed - Abort |
| K326 | Authentication failed - Authentication Error |