Qualify leads and draft emails pending human approval

I built LeadFlow AI V1 for n8n. Task: The author built LeadFlow AI V1 in n8n to automate lead qualification. The workflow processes incoming leads through validation, duplicate checks, AI scoring, and email drafting. Crucially, it pauses for human approval before sending emails via Gmail, logging all data and approval status in Google Sheets for auditability.; tools: n8n. Human role: The original post does not say how a person stayed involved.; limitations: The source does not specify operational costs, integration constraints, or error handling mechanisms. It is a community post describing a prototype, so reliability depends on the user's specific n8n environment and API permissions. Human approval is mandatory for email sending, creating a bottleneck if not managed..

Tools

n8n

Published on Agent Work Atlas:

Overview

I built LeadFlow AI V1 for n8n.

Workflow

The author built LeadFlow AI V1 in n8n to automate lead qualification. The workflow processes incoming leads through validation, duplicate checks, AI scoring, and email drafting. Crucially, it pauses for human approval before sending emails via Gmail, logging all data and approval status in Google Sheets for auditability.

Reported result

No measured business outcomes or performance metrics are reported in the source. The post describes the workflow construction and seeks community feedback on improvements, such as adding score rationale fields or moving to a dedicated dashboard, but does not confirm if these changes were implemented or their impact.

Human role

The original post does not say how a person stayed involved.

Limitations

The source does not specify operational costs, integration constraints, or error handling mechanisms. It is a community post describing a prototype, so reliability depends on the user's specific n8n environment and API permissions. Human approval is mandatory for email sending, creating a bottleneck if not managed.

Try it

Act as an n8n workflow builder. Create a lead qualification automation named 'LeadFlow AI V1'. Inputs: [Webhook URL for lead intake], [Google Sheets ID for logging], [Gmail Account]. Steps: 1. Receive lead data via webhook. 2. Validate fields and check for duplicates in Google Sheets. 3. Use an AI node to score the lead (HOT/WARM/COLD) and draft a personalized email. 4. Write lead data, score, reason, and draft to Google Sheets with status 'Pending Approval'. 5. Pause execution. 6. Upon human approval (via a separate trigger or manual update), send the email via Gmail and update status to 'Sent'. Deliverables: A JSON export of the n8n workflow and a sample Google Sheet structure. Quality Check: Run a dry test with one dummy lead. Verify the email is NOT sent until approval is simulated. Confirm the Google Sheet logs the score and draft correctly. If inputs are missing, ask for the specific Google Sheet ID and Gmail credentials before proceeding.

Original source

Source reports are not independently verified. Publication date is the catalog publication date, not the original article date.

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