GPT-4o Lead Scoring & Routing Workflow (n8n, Webhook, Gmail, Sheets)

Instant Lead Scoring & Smart Routing with GPT-4o in n8n

This GPT-4o Lead Scoring & Routing Workflow for n8n receives new lead enquiries via a webhook, enriches them with a GPT-4o agent, assigns a 1–10 fit score and urgency flag, then routes each lead by email (Gmail) or Google Sheets—with an immediate webhook response.

What this workflow does

• Receives inbound leads through a POST webhook request on /lead.
• Applies your ideal-customer rules and urgent-signal criteria to the incoming enquiry data.
• Enriches lead facts using an OpenAI GPT-4o orchestrator agent that calls your lead-enrichment sub-workflow and returns structured, knowable information.
• Scores and explains fit via a lead-scoring sub-workflow to produce:
  • a 1–10 score,
  • an urgency flag,
  • brief reasoning based on the enquiry and your rules.
• Routes leads automatically:
  • High-score or urgent → same-day notification email to the owner using Gmail.
  • Mid-score → append to a Google Sheets nurture list.
  • Decline → send a polite decline email to the enquirer via Gmail.
• Returns immediately from the webhook while enrichment, scoring, and routing continue in the workflow.

Use cases

• Turn website or form enquiries into an automated lead scoring system without manual triage.
• Prioritize sales outreach for urgent or high-fit prospects with instant Gmail notifications.
• Continuously build a Google Sheets nurture pipeline for mid-fit leads.
• Send consistent polite declines to low-fit enquiries to protect your sender reputation and customer experience.

Technical details

• n8n nodes/tools: webhook, set, gmail tool, google sheets tool, and the n8n-nodes-langchainagent GPT-4o orchestrator.
• Requires an OpenAI credential for the GPT-4o chat model.
• Uses two configurable sub-workflows: enrich_lead and score_lead (fill in their workflow IDs in the tool configuration).