AI Lead Qualification Workflow: GPT-4o + Gmail + Google Sheets

Turn every lead enquiry into a qualified Gmail priority—automatically

This AI Lead Qualification Workflow (GPT-4o + Gmail + Google Sheets) receives new enquiries via a webhook, uses OpenAI GPT-4o to enrich and score each lead against your ideal customer profile, then routes the outcome to Gmail (priority or polite decline) and logs nurtures into Google Sheets.

What this workflow does

• Receives leads via webhook: Accepts a POST request on /lead containing the enquiry details.
• Applies your ICP rules: Adds your ideal/good/poor/decline criteria and urgent signals to the incoming data so scoring stays aligned to your business.
• Enriches with GPT-4o orchestration: Calls an enrichment sub-workflow to extract only knowable facts from the enquiry (reducing ambiguity before scoring).
• Scores fit + urgency: Calls a scoring sub-workflow to return a 1–10 fit score, an urgency flag, and reasoning based on the enquiry, enrichment, and ICP.
• Routes the result:
  • Priority email in Gmail to the owner for high-fit/urgent leads.
  • Nurture logging in Google Sheets for leads that should be followed up later.
  • Polite decline email in Gmail to the enquirer when criteria indicate it’s a poor fit.

Use cases

• SaaS teams qualifying inbound demo requests and routing urgent leads to the sales owner.
• Automation engineers building an AI lead qualification pipeline in n8n without manual spreadsheet updates.
• Operations workflows that both prioritize outreach and maintain a nurture list for lower-fit leads.

Technical details

• Nodes/stack: set, webhook, Gmail tool, n8nn8n-nodes-langchainagent, Google Sheets tool, plus supporting notes (e.g., sticky note).
• Setup:
  • Add OpenAI credentials for the GPT-4o chat model.
  • Select the referenced enrich_lead and score_lead sub-workflows.
  • Connect Gmail and set the owner inbox (replace owner@example.com).
  • Connect Google Sheets and configure the target spreadsheet + sheet name for nurture logging.