Enrich event registrations with HubSpot, Clearbit, LinkedIn and Gemini AI

by Milo Bravo ✓ · 62 views · created 2026-03-03 · Lead Generation, AI Summarization

What this workflow does

This AI workflow has 38 nodes and runs when an HTTP POST request hits its webhook URL (plus 2 other triggers). Along the way it connects HubSpot, Slack and Google Gemini Chat Model. It also calls milobravo1.app.n8n.cloud and serpapi.com over HTTP.

How it runs

Trigger: When an HTTP POST request hits its webhook URL (plus 2 other triggers).

1. Parse Promo Code (Code): runs custom JavaScript code
2. Validate Registration Data (Code): runs custom JavaScript code
3. Log Beacon to Data Table (Data table): uses Data table
4. Lookup Promo Code (HTTP Request): calls milobravo1.app.n8n.cloud
5. Check Validation Result (If): checks a condition and branches into true / false
6. Respond OK to Beacon (Respond to Webhook): sends the response back to the webhook caller
7. Validate Promo Code (Code): runs custom JavaScript code
8. Create or Update HubSpot Contact (HubSpot): uses HubSpot
9. Respond Validation Error (Respond to Webhook): sends the response back to the webhook caller
10. Log Promo Code to Data Table (Data table): uses Data table

…plus 24 more steps. See the full node list below.

Services it uses

HubSpotSlackGoogle Gemini Chat Model

HTTP calls to: milobravo1.app.n8n.cloud, serpapi.com

Before you upgrade to n8n 3.0

Nodes used (11)

• Webhookn8n-nodes-base.webhook
• Data tablen8n-nodes-base.dataTable
• Respond to Webhookn8n-nodes-base.respondToWebhook
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• HubSpotn8n-nodes-base.hubspot
• Send Emailn8n-nodes-base.emailSend
• Slackn8n-nodes-base.slack
• HTTP Requestn8n-nodes-base.httpRequest
• Information Extractor@n8n/n8n-nodes-langchain.informationExtractor
• Google Gemini Chat Model@n8n/n8n-nodes-langchain.lmChatGoogleGemini

From the author

Event Registration + Auto-Enrichment Intelligence Who is this for? Event organizers, conference planners, and marketing teams fighting registration drop-off who want 4-field forms with LinkedIn-level attendee intelligence. What problem is this workflow…

View the original on n8n.io → Check your own copy