The post inquires about the possibility of automating the process of sending marketing messages or updates to users on WhatsApp. A community member suggests setting up Google Tag Manager and Tracking to track events, and then using a simple HTTP call to a backend server or API to add the details to a database and send promotions via WhatsApp. Another community member thanks the suggestion and requests resources to implement the same, to which the first community member responds that they haven't done it themselves, but provides some general guidance on using Google Analytics and Google Tag Manager.
I'd suggest you set up Google Tag Manager / Tracking and add it to the bot to track events.
You can also add a simple HTTP call for specific actions to a backend server / api that you have to add them to a database > and send promotions via wattsapp that way after collecting details