A server address is bound to multiple WeChat official accounts, and the official accounts are distinguished when users follow them.

When multiple official accounts are bound to the same server address, how to distinguish which official account the user is following when following?
WeChat follow event parameters
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You can see that ToUserName is the developer’s WeChat ID, that is, the WeChat ID of the official account. In WeChat, the WeChat ID is the only one and can be used WeChat ID to distinguish multiple public accounts

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Origin blog.csdn.net/qq_41995299/article/details/113886955