If you want to apply Whatsapp live chat widget in your manually built HTML website then simply follow the steps given below.
Step::1 Go to the given URL- https://elfsight.com/whatsapp-chat-widget/html/
Step::2 Click over the Create Widget button
Step::3 Now choose the template as per your choice and click on Continue with this template button
Step::4 Next in the Content section enter the Whatsapp Phone number to which you want to recieve the notifications
Step::5 Now customize the Chat header section
Step::6 Next customize the Welcome message
Step::7 Once the settings are configured click on Join to Install button
Step::8 Now complete the signup process
Step::9 Once all the process is completed, click on Save button.
Step::10 Next you will be redirected to a page with various plans, you can choose any plan as per your need and then click on continue.
Step::11 Copy the installation code
Step::12 Login to your cPanel and click on File Manager
Step::13 Click over public_html
Step::14 Right click over the HTML file and choose the Edit option
Step::15 Now paste the code here under the body tag and click on Save changes button
Congratulations!! You have succesfully added Whatsapp chat widget in your HTML website.