Automate event follow-ups with GPT-4, LinkedIn & HubSpot multi-channel outreach

Automate your post-event networking with this intelligent n8n workflow. Triggered instantly after an event, it collects attendee and interaction data, enriches profiles with LinkedIn insights, and uses GPT-4 to analyze engagement and generate tailored follow-up messages. High-value leads are prioritized, messages are sent via email, LinkedIn, or Slack, and all activity is logged in your CRM and database. Save hours of manual follow-up while boosting relationship-building and ROI. 🤝✨

Advanced Features

• Webhook automation – Starts instantly on event completion
• Multi-Source Enrichment – Combines event data, interactions, and LinkedIn profiles
• AI-Powered Insights – GPT-4 analyzes behavior and suggests personalized talking points
• Smart Priority Filtering – Routes leads into High, Medium, and Low priority paths
• Personalized Content Generation – AI crafts custom emails and LinkedIn messages
• Multi-Channel Outreach – Sends via Email, LinkedIn DM, and Slack
• CRM Integration – Automatically updates HubSpot with contact notes and engagement
• PostgreSQL Logging – Stores full interaction history and analytics
• ROI Dashboard – Tracks response rates, meetings booked, and pipeline impact

What It Does

• Collects attendee data from your event platform
• Enriches with LinkedIn profiles & real-time interaction logs
• Scores networking potential using engagement algorithms
• Uses AI to analyze conversations, roles, and mutual interests
• Generates hyper-personalized follow-up emails and LinkedIn messages
• Sends messages through preferred channels (email, LinkedIn, Slack)
• Updates HubSpot CRM with follow-up status and next steps
• Logs all actions and tracks analytics for performance reporting

Workflow Process

• The Webhook Trigger initiates the workflow via POST request with event and attendee data.
• Get Attendees fetches participant list from the event platform.
• Get Interactions pulls Q&A, chat, poll, and networking activity logs.
• Enrich LinkedIn Data retrieves professional profiles, job titles, and company details via LinkedIn API.
• Merge & Enrich Data combines all sources into a unified lead profile.
• AI Analyze Profile uses GPT-4 to evaluate interaction depth, role relevance, and conversation context.
• Filter High Priority routes top-tier leads (e.g., decision-makers with strong engagement).
• Filter Medium Priority handles warm prospects for lighter follow-up.
• AI Agent1 generates personalized email content using chat model and memory.
• Generate Email creates a professional, context-aware follow-up email.
• Send Email delivers the message to the lead’s inbox.
• AI Agent2 crafts a concise, friendly LinkedIn connection message.
• Generate LinkedIn Msg produces a tailored outreach note.
• Send LinkedIn posts the message via LinkedIn API.
• Slack Notification alerts your team in real-time about high-priority outreach.
• Update CRM (HubSpot) adds contact, tags, and follow-up tasks automatically.
• Save to Database (Insert) logs full lead journey and message content in PostgreSQL.
• Generate Analytics compiles engagement metrics and success rates.
• Send Response confirms completion back to the event system.

Setup Instructions

• Import the workflow JSON into n8n
• Configure credentials:
  • Event Platform API (for attendees & interactions)
  • LinkedIn API (OAuth2)
  • OpenAI (GPT-4)
  • SMTP (for email) or Email Service (SendGrid, etc.)
  • HubSpot API Key
  • PostgreSQL Database
  • Slack Webhook URL
• Trigger with a webhook POST containing event ID and settings
• Watch personalized outreach happen automatically!

Prerequisites

• Event platform with webhook + attendee/interaction API
• LinkedIn Developer App with API access
• OpenAI API key with GPT-4 access
• HubSpot account with API enabled
• PostgreSQL database (table for leads & logs)
• Slack workspace (optional, for team alerts)

Example Webhook Payload

{
  "eventId": "evt_spring2025",
  "eventName": "Annual Growth Summit",
  "triggerFollowUp": true,
  "priorityThreshold": {
    "high": 75,
    "medium": 50
  }
}

Modification Options

• Adjust scoring logic in AI Analyze Profile (e.g., weight Q&A participation higher)
• Add custom email templates in Generate Email with your brand voice
• Include meeting booking links (Calendly) in high-priority messages
• Route VIP leads to Send SMS via Twilio
• Export analytics to Google Sheets or BI tools (Looker, Tableau)
• Add approval step before sending LinkedIn messages

Ready to 10x your event ROI?
Get in touch with us for custom n8n automation!