1. Log-in to the Admin page of your store (URL example: storename.myshopify.com/admin/apps/faqprime-lite)
2. Find Settings
3. Click on 'Edit/Add number' button in the 'WhatsApp Chat' bar
4. Select 'Enable'
5. Add WhatsApp profile and other details
6. Make sure you Add International code before WhatsApp number (eg: USA : +1)
7. Click on 'Save'