---
description: This Page contains the Error codes of the payments backend server.
---

# Backend

| Error Code | Reason                                                         |
| :--------: | -------------------------------------------------------------- |
|   APM000   | Success / response processed successfully.                     |
|   APM001   | Invalid transaction amount                                     |
|   APM002   | Invalid request format or data in request                      |
|   APM003   | Re-launch the application to start the session.                |
|   APM004   | Terminal configuration issue for QR transaction                |
|   APM005   | Terminal configuration issue                                   |
|   APM006   | Terminal configuration issue                                   |
|   APM007   | Bank switch is not responding, kindly re-try                   |
|   APM008   | Communication issue with bank switch, kindly re-try            |
|   APM009   | Transaction type not permitted on terminal, contact help desk. |
|   APM010   | Terminal configuration issue                                   |
