# Gateway Error Codes

| Error Code | Description                                           |
|------------|-------------------------------------------------------|
| ZDP001     | The transaction was declined due to insufficient funds |
| ZDP002     | The card was declined by the bank                     |
| ZDP003     | The card is expired                                   |
| ZDP004     | Payment session timeout                               |
| ZDP005     | Denied transaction                                    |
| ZDP015     | The card number or expiry date is incorrect           |
| ZDP006     | The card security number is incorrect                 |
| ZDP008     | There was an error in card authentication             |
| ZDP009     | There was an error processing the payment transaction |
| ZDP010     | Unknown error                                         |
| ZDP011     | Transaction has been canceled                         |