Business connectivity
Before getting WeChat Pay online, Institution should firstly test whether the accessing node is the best one and wehther the network is stable.
Select a request domain name
WeChat provides two accessible request domain names:
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1
api.mch.weixin.qq.com: mainly serves institutions with servers deployed in mainland China.
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2
apihk.mch.weixin.qq.com: mainly serves institutions with servers deployed outside of mainland China.
Institutions can select either of the two based on where their server is deployed. Institutions are also advised to configure the other unselected domain name as the alternative. In this case, if the primary domain name fails, the alternative can be automatically used to ensure stable and continuous business operation.
