Appendix B (Response Code)

Check API request process status by Response Code

✅ Response Code with Response Message List

Response code	Response message
SUCCESS	success
PROCESSING	transaction processing
PWD_INCORRECT	password is incorrect
FAIL	failure.
TIMEOUT	timeout.
SYSTEM_ERROR	system error.
PARAM_INVALID	invalid parameter
PARAM_ERROR	parameter format error
ORDER_PAID	order paid
ORDER_USED	order number duplicated
ORDER_TYPE_ERROR	pre-authoried order
DB_ERROR	database error
MER_NO_AUTH	no permission for the merchant
CODE_EXPIRE	QR code expired, please refresh and try again
AMOUNT_NOT_ENOUGH	insufficient balance
CARD_NOT_SUPPORT	unsupported card
CURRENCY_NOT_SUPPORT	unsupported currency
ORDER_CLOSED	order closed
ORDER_REVERSED	order cancelled
BANK_ERROR	banking system anomaly
AUTH_CODE_ERROR	authorization code parameter error
AUTH_CODE_INVALID	authorization code validation fail
REQ_AGAIN	please restart a transaction
REFUND_INVALID	refund amount greater than the amount paid
MERCHANT_INVALID	merchant information does not match
REFUND_FEE_MISMATCH	refund amount check fail
REFUND_NOT_EXIST	refund order not exist
BODY_NOT_ENOUGH	insufficient message header
ORDER_NOT_EXIST	original order not exist
PRE_AUTH_FINISHED	original order has been finished
REVERSE_NOT_SUPPORT	original order does not support revocation.
STATU_FAIL	accepting institution abnormal state
SIGN_FAIL	verification signature fail
REFUND	transfer to refund
REFUND_SUCCESS	refund success.
PARTIAL_REFUNDED	partial Refunded
FULLY_REFUNDED	fully Refunded.
REF_SUCCESS_CHANGE	refund success, user card frozen, need human intervention
NOTPAY	unpaid
PAYERROR	payment failed
NO_CHANNEL	no channel supported
MER_NO_INFO	failed to get merchant information.
MER_ACCOUNT_INSUFFICIENT	merchant account balance is insufficient. Do not allow to refund.
OTHER	other case.
SERIALNO_EXIST	the account request serial number already exists, can not be submitted again.
REASON_TRADE_BEEN_FREEZEN	corresponding trade has been frozen due to security issues. Please contact Alipay technical support
HAS_NO_PRIVILEGE	no privilege. please contact Alipay technical support
BUYER_ERROR	the buyer does not exist.
BUYER_ENABLE_STATUS_FORBID	buyer account status prohibits the refund
SELLER_ERROR	the seller does not exist.
TRADE_STATUS_ERROR	the trade status is illegal.
TRADE_HAS_FINISHED	the trade has been finished.
MERCHANT_BALANCE_NOT_ENOUGH	merchant balance is not enough for refund.
TRADE_CANCEL_TIME_OUT	the cancellation request is beyond the opening hours.
UNKNOW	indicates payment result is unknown);