| 4000 | Transaction successful |
| Direct debit |
| 4051 | Invalid bank account |
| Credit card |
| 4101 | Issuing country invalid or unknown |
| 4102 | 3D-Secure or MasterCard SecureCode authorization failed |
| 4103 | Validation date of card exceeded |
| 4104 | Invalid or unknown card type |
| 4105 | Limited-use card |
| 4106 | Invalid pseudo-cardnumber |
| 4107 | Card stolen, suspicious or marked to move in |
| 4108 | Telephone approval |
| PayPal |
| 4151 | Invalid PayPal token |
| 4152 | Post-processing necessary at PayPal |
| 4153 | Change PayPal payment method |
| 4154 | PayPal-payment is not completed |
| General |
| 4501 | Timeout / no user input |
| 4502 | User aborted |
| 4503 | Duplicate transaction |
| 4504 | Uspicion of manipulation or payment method temporarily blocked |
| 4505 | Payment method blocked or rejected |
| 4900 | Transaction rejected |
