Automate Gmail Lead Follow-Up with OpenAI GPT-4O, HubSpot, Slack & Google Sheets

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Built by Avkash Kakdiya Avkash Kakdiya
Created on June 05, 2026

Description

How it works

This workflow automates the handling of new lead responses received in Gmail. It captures emails with a specific label, analyzes the message using AI to determine sentiment, intent, urgency, next action, and priority, and then decides whether follow-up is needed. If required, it creates tasks in HubSpot, notifies the sales team via Slack, and logs all details into Google Sheets for tracking.

Step-by-step
Trigger on New Lead Email

Workflow starts whenever a new email with a defined Gmail label arrives.

Captures the sender’s email, subject, message snippet, and timestamp.

Normalize Email Data

Standardizes Gmail fields into structured values:

leadEmail (sender’s address)

subject (email subject)

message (email content snippet)

source (Gmail)

receivedAt (timestamp)

AI-Powered Lead Analysis

Uses OpenAI to analyze the lead’s message.

Extracts:

Sentiment (Positive / Neutral / Negative)

Intent (Interested, Not Interested, Needs Info, Ready to Buy, Objection)

Urgency (High / Medium / Low)

Next Action (Call, Email, Demo, Quote, No Action)

Summary (1–2 sentence description)

Priority (Hot / Warm / Cold)

Parsed results are merged with the original email data.

Flags are added:

needsFollowUp (true/false)

isHighPriority (true/false)

Decision: Needs Follow-Up?

If AI suggests a follow-up action, the workflow continues.

Otherwise, the process stops here.

Create HubSpot Task

Automatically creates a HubSpot CRM task for the sales team.

Task includes email subject, body, and lead details.

Notify Sales Team on Slack

Sends a formatted message to Slack with key lead insights:

Summary

Lead email

Priority

Urgency

Date of analysis

Log Lead Data to Google Sheets

Appends structured data to Google Sheets for record-keeping.

Stores all fields: Email, Date, Subject, Message, Sentiment, Intent, Urgency, Next Action, Summary, and Priority.

Why use this?

Automates lead triage directly from Gmail.

Saves time by using AI-powered analysis instead of manual review.
Ensures no potential lead is missed by logging into Google Sheets.

Provides instant sales team alerts on high-priority leads.

Integrates seamlessly with HubSpot CRM for structured follow-up.

Keeps your sales pipeline efficient, organized, and proactive.

Nodes Used (6)

AI Agent
@n8n/n8n-nodes-langchain.agent
Code
n8n-nodes-base.code
Google Sheets
n8n-nodes-base.googleSheets
HubSpot
n8n-nodes-base.hubspot
OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi
Slack
n8n-nodes-base.slack