Build a Self-Running Webinar Registration Page in 30 Minutes

Build a complete webinar registration system in 30 minutes that captures every signup, syncs your CRM, and runs follow-up on its own, made for B2B marketers who run webinars. Download the playbook with the exact Replit page-builder prompt, the Notion database schema, and the two Relay workflows that wire it all together.

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What you'll learn

Map the full registration flow on paper first so you build the stack once instead of three times
Set up the Notion Webinars database with the 6 fields that make it the single source of truth, including the Event ID and Calendar URL that Relay auto-populates
Use the exact Replit prompt to generate a branded two-column registration page that pulls live events from Notion and drops past-dated webinars automatically
Build the Webinar Creator workflow in Relay so a Notion status change creates the calendar event and writes the Event ID back
Build the Registration Handler workflow that turns one signup into 7 actions across Calendar, HubSpot, Gmail, Google Sheets, and Slack
Wire the Replit form to the Relay webhook and pass email, event title, and Event ID so guests land on the right calendar event
Test each node in isolation with the 10-step verification checklist, then deploy to a custom domain and share the URL

Summary

This playbook walks you through a four-component automation stack that ties a Replit page builder, a Notion database, and Relay workflows into one system where planning a webinar in Notion triggers everything downstream. You mark a webinar Scheduled in Notion and Relay creates the Google Calendar event and writes the Event ID back. When someone registers, one webhook fires seven actions, including adding the guest to the calendar, creating or updating the HubSpot contact, sending the confirmation email, logging the attendee to a Google Sheet, posting to Slack, and sending a reminder 1 hour before the event. The whole system was built during a live AI build session in 30 minutes with zero code written.