Reply to contact form leads via Gmail and Google Sheets using OpenAI GPT-4o mini
Quick overview This workflow triggers on n8n form submissions, uses OpenAI (GPT-4o mini) to draft a short acknowledgment email, sends the auto-reply through Gmail, and appends the submission details to a Google Sheets spreadsheet. How it works 1. Triggers when someone submits the n8n “Contact Us” form with their name, email, and message. 2. Sends the submission text to OpenAI (GPT-4o mini) to generate a warm auto-reply that promises a human follow-up within one business day. 3. Sends the generat
At a glance
Reply to contact form leads via Gmail and Google Sheets using OpenAI GPT-4o mini is a ready-made n8n workflow you import as a workflow JSON file — no build required. It connects Gmail, Google Sheets, OpenAI. It's free to download. Follow the 5-step import below to go live in minutes.
- Platform
- n8n
- Connects
- Gmail, Google Sheets, OpenAI
- Modules
- 5
- Price
- Free
- Version
- v1.0

About this workflow
Quick overview This workflow triggers on n8n form submissions, uses OpenAI (GPT-4o mini) to draft a short acknowledgment email, sends the auto-reply through Gmail, and appends the submission details to a Google Sheets spreadsheet. How it works 1. Triggers when someone submits the n8n “Contact Us” form with their name, email, and message. 2. Sends the submission text to OpenAI (GPT-4o mini) to generate a warm auto-reply that promises a human follow-up within one business day. 3. Sends the generated reply to the submitter via Gmail with the subject “Thanks for reaching out!”. 4. Appends the form submission data to a Google Sheets worksheet for tracking. Setup 1. Connect an OpenAI credential for the Chat model used to generate the email reply. 2. Connect a Gmail account credential and confirm the workflow is allowed to send email from that mailbox. 3. Connect a Google Sheets credential, replace the spreadsheet URL/ID in the Google Sheets step, and ensure the target sheet tab is named “Leads” (or update it to match your sheet).
How to import this n8n workflow
- 1
Download the workflow JSON file after purchase.
- 2
Open n8n → click the menu → Import from File.
- 3
Select the downloaded JSON and import.
- 4
Set up credentials for each node that requires them.
- 5
Click Execute Workflow to test, then activate.
Setup guide
Setup guide included
Purchase to unlock the full step-by-step guide
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- JSON blueprint — instant download
- Setup guide PDF included
- 5 downloads · valid 30 days
- Works with n8n
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