How to use Whatsapp users opt-in messages
Most chat communication channels use what we call an opt-in. An opt-in is a user started action that clearly shows the intent to communicate on the channel and with you (or better, with your chatbot). Different channels have different opt-in methods: Facebook and Telegram have a “Start” button, your Alexa skill needs to be called by name and your Whatsapp contact number needs to receive at least a message from your user (unless you’re using massive, push broadcasts). When publishing …