Sentiment Analysis of Product Reviews using Google Sheets & OpenAI

Description

🧠 Sentiment Analysis of Product Reviews using Google Sheets & OpenAI

🚀 Quick Implementation Steps

Automated customer feedback analyzer:

Trigger**: Google Sheets triggers on new product review rows.
Sentiment Analysis**: Review text sent to OpenAI.
Writeback**: Resulting sentiment (Positive, Neutral, Negative) is written back to the sheet.

Just connect your credentials and sheet — you're ready to go!

🔍 What It Does

This workflow automatically analyzes user-submitted product reviews and classifies them by sentiment using OpenAI’s powerful language models. It eliminates the need to manually sift through feedback by tagging each review with a sentiment score.

The sentiment result is then written back to the Google Sheet next to the original review, enabling you to get a fast, clear snapshot of overall customer perception, satisfaction and pain points. Whether you're monitoring 10 or 10,000 reviews, this process scales effortlessly and updates every minute.

👤 Who’s It For

This workflow is designed for:

E-commerce teams** collecting user reviews.
Product teams** monitoring customer feedback.
Marketing teams** identifying promotable reviews.
Support teams** watching for negative experiences.
SaaS platforms**, apps, and survey tools managing structured text feedback.

✅ Requirements

You’ll need:

A Google Sheet with two columns: Review and Sentiment
Google Sheets OAuth2 credentials in n8n
OpenAI API Key (for GPT-4o-mini or GPT-3.5)
n8n instance with LangChain and OpenAI nodes enabled

⚙️ How It Works

Google Sheets Trigger: Watches for new rows every minute
OpenAI Integration:
Uses LangChain’s Sentiment Analysis node
Passes review text into GPT-4o-mini via the OpenAI Chat Model node
Sheet Update: The sentiment result (Positive, Negative, or Neutral) is written into the Sentiment column in the same row.

Sticky Notes included for better visual understanding inside the workflow editor.

🛠️ Steps to Configure and Use

1. Prepare Your Google Sheet

Make sure your sheet is named Sheet1 with the following structure:

| Review | Sentiment |
|---------------------------------------|-----------|
| Absolutely love it! | |
| Not worth the price. | |

2. Set Up Credentials

Google Sheets**: OAuth2 credentials
OpenAI**: API Key added via OpenAI API credential in n8n

3. Import & Activate Workflow

Import the workflow JSON into your n8n instance.
Assign the proper credentials to the trigger and OpenAI nodes.
Activate the workflow.

🧩 How To Customize

🛎️ Alerting: Add Slack/Email nodes for negative sentiment alerts
🔄 Triggering: Change the polling interval to real-time triggers (e.g., webhook)
📊 Extended Sentiment: Modify sentiment categories (e.g., "Mixed", "Sarcastic")
🧾 Summary Report: Add Cron + Aggregation nodes for daily/weekly summaries
🧠 Prompt Tuning: Adjust system prompt for deeper or context-based sentiment evaluation

🧱 Add‑ons (Optional Features)

Email Digest of Negative Reviews
Google Drive Logging
Team Notification via Slack
Summary to Notion, Airtable, or Google Docs

📌 Use Case Examples

Online Stores**: Auto-tag reviews for reputation monitoring
Product Teams**: See which feature releases generate positive or negative buzz
CX Dashboards**: Feed real-time sentiment to internal BI tools
Marketing**: Extract glowing reviews for social proof
Support**: Triage issues by flagging critical comments instantly

...and many more applications wherever text feedback is collected.

🧰 Troubleshooting Guide

| Issue | Possible Cause | Suggested Fix |
|-------------------------|---------------------------------------------|---------------------------------------------------|
| Sentiment not updating | Sheet credentials missing or misconfigured | Reconnect Google Sheets OAuth2 |
| Blank sentiment | Review column empty or misaligned | Ensure proper column header & value present |
| OpenAI errors | Invalid or expired API key | Regenerate API Key from OpenAI and re-auth |
| Workflow doesn’t run | Polling settings incorrect | Confirm interval & document ID in trigger node |

🤝 Need Help?

If you need assistance for

✅ Help setting up this workflow
⚙️ Customizing prompts or output
🚀 Automating your full review pipeline

👉 Contact us today at WeblineIndia. We will be happy to assist.