| BYRD010 | Request accepted. | N/A |
| BYRD200 | Operation successfully completed. | Success |
| BYRD201 | Payment being processed. Waiting for shopper. | Processing |
| BYRD203 | An error occurred while processing the payment. Please query the transaction to confirm its status. | TemporaryFailed |
| BYRD205 | Operation rejected. This code is related to operation denial from the acquirer. | Denied |
| BYRD206 | Operation blocked by velocity. | Denied |
| BYRD207 | Pending redirect. | Processing |
| BYRD208 | Payment canceled by the shopper. | Canceled |
| BYRD230 | Payment already refunded. | Denied |
| BYRD231 | The refund amount exceeds the remaining balance of the original payment. | Denied |
| BYRD240 | Token is expired. | Error |
| BYRD290 | An error occurred while pre-processing the transaction. Please review your request and try again. | Error |
| BYRD291 | An error occurred while preparing the transaction for acquiring. Please review your request and try again. | Error |
| BYRD292 | No payment methods available for this operation. Please contact Paybyrd support. | Error |
| BYRD294 | Transaction could not be updated. Please review your request and try again. | Error |
| BYRD299 | Operation could not be completed. Please review your request and try again. | Error |
| BYRD401 | Resource access unauthorized. | Error |
| BYRD403 | Resource access is forbidden. | Error |
| BYRD900 | Invalid input. | Error |
| BYRD901 | Resource not found. | Error |
| BYRD999 | Operation failed. This code is related to unhandled errors. | Error |