Enumeration of Interface Response Codes

All interface responses include a code field. A non-000000 code indicates failure, along with the corresponding error message and information provided to the user. It is recommended to encapsulate the response based on the enumerated code and avoid displaying the msg field directly to the user.

Interface Response Code Enumeration code

Response Code	Description
000000	Processed successfully
A0340	Signature exception
A0400	Request parameter exception
A0471	Invalid merchant ID
A0497	Merchant order number must be unique
A0500	Request service exception
A0601	Insufficient balance
C3752	Business configuration closed
C3754	Order placement failed
C3755	Business call failed
C3757	Request timestamp expired
C3758	Invalid appID
C3760	Manage payment methods closed
C3761	Manage payment method closed
C3763	Merchant payment methods closed
C3764	Invalid paymentMode/paymentMethod
C3765	Merchant payment method closed
C3766	Invalid paymentMode/paymentMethod
C3767	Business configuration closed
C3777	Invalid request IP
C3778	Key parsing exception
C3779	User-Agent Invalid
C3801	Order placement failed
C3802	Insufficient balance
C3803	Manage payment methods outside the trading scope
C3804	Manage payment method outside the trading scope
C3805	Merchant payment methods outside the trading scope
C3806	Merchant payment method outside the trading scope
C3807	Ifsc code not support
C3808	Asynchronous order failed