1. First, log in to the WeChat official account, enter your account number and password, and then click "Login" below.

2. In the options on the left side of the personal WeChat official account page after logging in, we will find a "Customer Service Function" option, click it with the mouse.

3. Then on the right side of the "Customer Service Function", you will find an "Add Customer Service" option, click it with the mouse.

4. Edit the customer service content, enter the customer service nickname, upload the customer service photo, and then click "Next" below.

5. In this way, the customer service function of the WeChat official account has been added. Users will find this customer service function when browsing the WeChat official account.