WHATSAPP API Explicación: https://www.youtube.com/watch?v=CNCYE74K-4k Usando un proveedor oficial del servicio whatsapp facebook api: Twilio: https://www.youtube.com/watch?v=LhlLPLC4tPY Whatsapp home api https://www.whatsapp.com/business/api?lang=es Empresas que proveen el servicio: https://www.facebook.com/business/partner-directory/search?platforms=whatsapp&solution_type=messaging