We have done an integration with ZohoCRM and WeChat( simple chat application for sending messages via WeChat APIs).

One of our customer is facing an issue in WeChat.

1. The customer's account type is "Micro Channel Public platform" and he/she wants to use WeChat Extension for sending messages.

2. The customer can be able to configure (basic configuration ---> Server address/Token) in mp.weixin.qq.com

3. If the customer configures the Server address and Token. he/she can be able to get the callback url hit and user is Authorised successfully.

4. The customer can able to create QR-Code with the help of AppId and AppSecret.

Problem :

Suppose if the Customer generates the QRCode and shares to someone(receiver),

1. If the receiver scans the QRCode events "Follow" and "UnFollow" should be pushed to the callback url. 

But this is not working.

This is the problem we are facing for our customer, I request the WeChat team to help me in resolving this issue.