How to Integrate WhatsApp Business into Website?
It's a fact that WhatsApp only supports mobile platforms, making it challenging to integrate plain text with a website as Messenger popups do. The official response from WhatsApp was to use their API connection or a direct app trigger call.

These techniques allow users to easily reach the WhatsApp Business contact by tapping the relevant button on the website. Integrating a WhatsApp Business account with your website may be done in several reliable, tried-and-true ways.

Nearly all of these techniques operate without issue on Android and iOS mobile devices.