The tutorial guides users through building an SMS service using Twilio and SendGrid to contact local representatives. The process involves creating a Twilio Studio flow, configuring Twilio Functions to handle incoming text messages, and integrating the service with SendGrid's API to send emails via SMS. Users will use Google's Civic Information API to fetch local representative information and Twilio Studio's no-code tool to build communication workflows for their service or app. The tutorial concludes by publishing the completed flow and configuring the functions to work seamlessly within the studio, enabling users to effectively raise public concerns and voice their opinions through an SMS-based system.