Common Questions

Common Questions：

Question	Answer
invalid extra format, correct format is: {"value":"test23123"}”	Invalid additional format. The correct format should be: {"value": "test23123"} The extra parameter is of type String, and its value should be: extra="{"value": "AIRP0000001"}"
extra parameter signing issue	&extra={"value":"TEST243234234"} & The extra parameter signing should be like this, consistent with the string format.
ip address not in whitelist, please contact administrator to add whitelist	1. Contact the operation to send the IP address to be added to the whitelist. 2. Check if the mchId is the one provided by the operation.
If the return value of retCode for a payment on behalf order is not equal to SUCCESS, can we consider the payment on behalf failed?	Yes, only when the status is SUCCESS can we consider the order successful

Common Questions ​