Automate Customer Feedback Analysis with n8n and OpenAI

What This Automation Does

This workflow takes customer feedback from a form and sorts it by feeling: positive, negative, or neutral.
It uses OpenAI to read the feedback and decide the mood behind the words.
Then, it saves all the information into a Google Sheet, so the team can see and use it fast.
This stops people spending hours reading and typing feedback manually.

Who Should Use This Workflow

This workflow is good for anyone who gets lots of feedback and wants to sort it quickly.
If the user works in customer support or runs a business collecting opinions, this helps track feelings easily.

Tools and Services Used

• n8n Workflow Automation Platform: Runs and connects the full process.
• Google Sheets: Stores the sorted customer feedback.
• OpenAI API: Reads and classifies the mood of feedback text.
• Web-accessible feedback form: Collects customer responses live.
• Optional: self-host n8n for private control and deployment.

Inputs, Processing Steps, and Output

Inputs

• New customer feedback submitted via the web form.

Processing Steps

• Form Trigger node catches new form entries.
• OpenAI node receives the feedback text and decides if it is positive, negative, or neutral.
• Merge node combines original feedback data with the sentiment classification.
• Google Sheets node appends all information as a new row.

Output

• A new row in Google Sheets with the feedback category, sentiment result, timestamp, customer name, contact info, and feedback text.

Beginner Step-by-Step: How to Use This Workflow in n8n

Step 1: Import the Workflow

1. Click the Download button on this page to get the workflow file.
2. Inside the n8n editor, choose “Import from File” and select the downloaded file.

Step 2: Configure Credentials and IDs

1. Add your OpenAI API Key and Organization ID inside the OpenAI node credentials.
2. Connect your Google Sheets OAuth2 credentials in the Google Sheets node.
3. Update the Google Sheet document ID and sheet name in the Google Sheets node if needed.

Step 3: Adjust Form Settings if Needed

1. Check the form fields and webhook URL inside the Form Trigger node.
2. Use the provided webhook URL to make sure your feedback form sends data to n8n.

Step 4: Test the Workflow

1. Submit a test entry through your web form or send test data directly to the webhook URL.
2. Look for a new row with sentiment analysis in your Google Sheet.

Step 5: Activate for Production

1. Turn on the workflow toggle inside n8n.
2. Make sure the webhook URL is accessible for your live form.

Customizations and Improvements

• You can change the OpenAI prompt in the OpenAI node to detect more feelings like happy or frustrated.
• Add logic nodes to mark urgent feedback with keywords, then add an “Urgent” column to Google Sheets.
• Edit the form to add rating scales or product choices.
• Add a Slack node after adding data to Google Sheets to notify your team on important or negative feedback.
• Create another node to save the raw JSON of feedback for records.

Troubleshooting

• OpenAI node has errors or empty answers: Check API key and usage limits in your n8n settings. Refresh keys if needed.
• Google Sheets does not update: Verify document ID, sheet name, and Google permission scopes.
• Form submissions don’t start workflow: Make sure webhook URL is correct and reachable. Use tools like Postman to test.

Pre-Production Checklist

• Share the Google Sheet with the Google account used in OAuth credentials.
• Confirm OpenAI API Key and Organization ID are valid.
• Test webhook URL with sample feedback.
• Check that fields match your Google Sheet columns exactly.
• Ensure form fields are correctly set up as required or optional.
• Backup existing Google Sheet data before running live.

Deployment Guide

After testing, switch on the workflow to active in n8n.
The webhook URL must be live and open to receive form data.
Use n8n execution logs to watch runs and set alerts for failures.
Consider saving regular backups of the Google Sheet feedback data.

Summary

✓ Workflow takes customer feedback and sorts by sentiment using OpenAI.
✓ Feedback data automatically saves to Google Sheets with all details.
✓ Saves time by cutting manual sorting and typing.
✓ Easy to import, configure, and run inside n8n.
✓ You get quick insights that improve customer care.