Information on using Twilio with Whatsapp
I am making an app with Django and react about a clinic. My clients want to send automatically the appointment through WhatsApp to their patients. I have been reviewing the Twilio documentation, as I understand, I need that the phone number I use to send the WhatsApp must be WhatsApp Business. Can anyone help me on how to perform this function? I have never used Twilio, and I am very lost, I also don't understand how I am going to be able to test that it works correctly before launching it.
Thanks in advance for the help.