n8n AI Lead Qualification: GPT-4o, HubSpot CRM & Slack

Qualify inbound leads instantly with GPT-4o, HubSpot, and Slack—inside n8n

This n8n workflow captures inbound lead submissions via a webhook, analyzes the company’s website with OpenAI (GPT-4o-mini), scores and qualifies the lead using structured JSON, upserts the contact into HubSpot CRM, and notifies your team in Slack based on lead priority.

What this workflow does

• Receives leads via webhook: Listens for a POST request on an n8n Webhook trigger with lead details (name, email, company, and message).
• Normalizes and derives a company domain: Standardizes incoming fields and extracts the domain from the email address.
• Fetches website context: Uses an HTTP request to pull the prospect’s company homepage HTML.
• Scores and qualifies with OpenAI: Sends lead details plus a cleaned website snippet to OpenAI GPT-4o-mini, then parses a strict JSON response containing lead score, tier, summary, reasoning, and an outreach icebreaker.
• Upserts into HubSpot: Creates or updates the matching contact in HubSpot, storing qualification details in configurable contact properties.
• Routes notifications in Slack: Sends leads with a score ≥ 70 to a high-priority Slack sales channel and logs lower-scoring leads to a separate Slack nurture channel.

Use cases

• SaaS teams that want faster follow-up after form fills, demo requests, or inbound inquiries.
• Automation engineers building a lead qualification pipeline that reduces manual CRM updates.
• Operators who want AI-scored leads routed to sales vs. nurture automatically.

Technical details

• n8n Webhook for inbound lead submissions
• OpenAI Chat Model (GPT-4o-mini) with strict JSON structured output
• HTTP to fetch company website homepage HTML
• HubSpot OAuth2 + contact upsert to store qualification fields
• Slack notifications to sales and nurture channels
• Workflow nodes include: if, set, slack, hubspot, webhook, sticky note

Setup highlights

• Copy the webhook URL from the Inbound Lead Webhook trigger and POST lead submissions to it.
• Connect OpenAI and HubSpot OAuth2 credentials; select contact properties to populate.
• Connect Slack credentials and set your target channels (e.g., #sales-hot-leads and #marketing-nurture-feed).