| 100000 | success | |
| 400000 | Invalid request parameters | Verify the format of the requested data. |
| 400002 | Signature verification failed | Ensure the merchant signature is correct. |
| 400003 | Request timestamp timeout | Verify the timestamp field in the request header. |
| 400004 | Order not found | Pay(Refund) order not found |
| 400007 | Unsupported payment type | Confirm that the payment type is supported by the API. |
| 400603 | Order timeout | Check if the order has expired. |
| 400621 | Incorrect payment amount | Verify the requested amount. |
| 400620 | Duplicate payment for order | Ensure the merchant order number has not been submitted twice. |
| 500000 | Bybit internal error | Bybit internal error, such as db error. |
| 500008 | Merchant not found | Confirm that the provided merchant ID is correct. |
| 500100 | Payment QR code has expired | Place a new order to generate a new QR code. |
| 500101 | Duplicate payment for QR code | Verify the order status before proceeding. |
| 500102 | Merchant not Available | Merchant not Available by API now |
| 500103 | Order has refund | Order has refund, do not refund again |
| 500104 | Balance not Available | Balance not available, top up to the refund account(Bybit KYB funding account) |
| 500105 | Order not paid | Order not paid |