The below is a list of common error messages from the pax temrinal.
| Code | Message | Description |
| 000000 | OK | Approve |
| 000100 | DECLINE | Merchant gateway error |
| 100001 | TIMEOUT | Batch closing timed out. |
| 100004 | UNSUPPORT TRANS | Terminal doesn't support transaction |
| 100005 | UNSUPPORTED EDC | Terminal doesn't support transaction |
| 100006 | BATCH FAILED | Unable to batch out terminal |
| 100007 | CONNECT ERROR | Can not connect to merchant gateway |
| 100008 | SEND ERROR | Can not send request to merchant gateway |
| 100009 | RECEIVE ERROR | Can not receive response from merchant gateway |
| 100010 | COMM ERROR | Can not connect to terminal from POS |
| 100011 | DUP TRANSACTION | Transaction is a duplicate transaction |