It takes 24 hours to display on the mobile phone, and you need to click Update once after setting the menu bar. The menu bar needs three columns to be released, but only two columns are not enough. The method is as follows:

1. Log in to the WeChat public platform account, enter the WeChat public platform, and find "Function"-double-click the "Advanced Function" button;

2. Enter the edit mode, find the custom menu of the application, and click "Settings";

3. Click "Settings"-"Custom Menu" to set the function item, and enter the menu name to add your own menu;

4. On the right side of the added primary menu, click+to add the secondary menu. After successfully adding the secondary menu, select the secondary menu;

1. After selection, you can add menu content (you can choose words, pictures and sounds, or you can choose edited graphic information in the material). After adding content successfully, click Save;

2. After setting, click "Preview" and it will appear on the mobile phone to see the preview effect;

3. After confirming that there is no problem, you can click Publish;

4. Within 24 hours after release, it can take effect for all users.