Skip to main content

Qualify lead lists and find professional emails with OpenAI and Google Sheets

Workflow preview

Workflow preview
100%
Qualify lead lists and find professional emails with OpenAI and Google Sheets preview
Open on n8n.io

1. Workflow Overview

Qualify Lead Lists And Find Professional Emails With OpenAI and Google Sheets Drop a lead list into Google Drive. This workflow reads it, finds professional emails using OpenAI, and splits leads in...

Best for

  • Lead Generation automation workflows
  • AI Summarization automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.googledrivetrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.set, n8n-nodes-base.splitinbatches, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.wait, n8n-nodes-base.if, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Devon Toh.

Original n8n.io source

1.1 Workflow description

Title
Qualify lead lists and find professional emails with OpenAI and Google Sheets
Workflow name
Qualify lead lists and find professional emails with OpenAI and Google Sheets

Qualify Lead Lists And Find Professional Emails With OpenAI and Google Sheets

Drop a lead list into Google Drive. This workflow reads it, finds professional emails using OpenAI, and splits leads into Qualified and Unqualified sheets fully automated.


How It Works

  1. Watch For New Leads Google Drive trigger monitors a folder. When a new spreadsheet lands, the workflow fires.

  2. Read Lead Sheet Pulls every row from the new spreadsheet.

  3. Normalize Lead Data Standardizes fields: full name, company, website, LinkedIn URL, industry, job title, and location.

  4. Find Email via OpenAI Each lead is sent to GPT-4o to find a verified professional email. Returns the email, source, and confidence score (high / medium / low).

  5. Rate-Limited Batching Leads process in batches of 3 with a 1.5s delay to respect API rate limits.

  6. Has Valid Email? If a valid email was found (contains @), the lead goes to the Qualified sheet. Otherwise it goes to Unqualified -- both written back to the same spreadsheet.


Setup

  1. Google Drive / Sheets -- Connect your Google OAuth2 credentials. Update the folder ID in the trigger node.
  2. OpenAI -- Connect your OpenAI API credential to the Find Email via OpenAI node.
  3. Input Sheet -- Needs columns: first name, last name, company, corporate website, linkedin industry, linkedin url, job title, location
  4. Output Tabs -- Create two tabs named Qualified and Unqualified with columns: fullName, companyName, companyWebsite, linkedinUrl, jobTitle, location, email, source, confidence

Use Cases

  • Qualify exported Apollo / LinkedIn Sales Nav lead lists before outreach
  • Enrich scraped conference attendee lists with verified emails
  • Pre-qualify inbound lead dumps before loading into your CRM or sequencer

Built by Devon Toh

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Watch For New Leads

Type / Role
n8n-nodes-base.googleDriveTrigger - googleDriveTrigger
Config choices
Version 1

Block 2 - Read Lead Sheet

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 3 - Normalize Lead Data

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 4 - Batch Leads

Type / Role
n8n-nodes-base.splitInBatches - splitInBatches
Config choices
Version 3

Block 5 - Find Email via OpenAI

Type / Role
@n8n/n8n-nodes-langchain.openAi - openAi
Config choices
Version 2.1

Block 6 - Rate Limit Delay

Type / Role
n8n-nodes-base.wait - wait
Config choices
Version 1.1

Block 7 - Parse Email Results

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 8 - Has Valid Email?

Type / Role
n8n-nodes-base.if - if
Config choices
Version 2.3

Block 9 - Save Qualified Lead

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 10 - Save Unqualified Lead

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 11 - Main Description

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 12 - Section - Ingest

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 13 - Section - Find Emails

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 14 - Section - Route Results

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 15 - Warning

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

3. Summary Table

Workflow Qualify lead lists and find professional emails with OpenAI and Google Sheets
Complexity advanced
Nodes 15
Categories Lead Generation, AI Summarization
Author Devon Toh
Published 20 Mar 2026

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/14198/14198.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Qualify lead lists and find professional emails with OpenAI and Google Sheets do?

Qualify Lead Lists And Find Professional Emails With OpenAI and Google Sheets Drop a lead list into Google Drive. This workflow reads it, finds professional emails using OpenAI, and splits leads in...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Lead Generation, AI Summarization use case.