n8n Workflow Automation : The Smart Way to Collect Customer Testimonials and Feedback

n8n sends a Google Forms feedback request post-purchase, collects responses and updates a WordPress site with testimonials.

• n8n installed.
• Google Forms with webhook support.
• Gmail account with API key.
• WordPress site with API access.

1. Prepare n8n Environment

• Navigate to http://localhost:5678 (or your n8n hosted URL) and log in with your credentials. 

• In the sidebar, click “Workflows,” then select “+ New” and name it (e.g., “Campaign Tracker”). Click “+” on the canvas to open the node selector.

2. Trigger Node: Shopify Webhook

• Node: Webhook

• Settings:

• Path: shopify-sale

• Shopify Webhook: “Order Creation” at https://<n8n-host>/webhook/shopify-sale

• Output: Sale data (e.g., {{ $json.body.line_items[0].sku }}).

3. Update Shopify Node: Shopify

• Node: Shopify

• Settings:

• Credentials: Shopify API key

• Resource: Inventory

• Operation: Update

• SKU: {{ $node["Webhook"].json.body.line_items[0].sku }}

• Quantity: Decrease by {{ $node["Webhook"].json.body.line_items[0].quantity }}

• Output: Shopify stock updated.

4. Update Amazon Node: HTTP Request

• Node: HTTP Request

• Settings:

• URL: Amazon SP-API endpoint for inventory

• Method: PUT

• Authentication: Amazon API credentials

• Body: { "sku": "{{ $node["Webhook"].json.body.line_items[0].sku }}", "quantity": "-{{ $node["Webhook"].json.body.line_items[0].quantity }}" }

• Output: Amazon stock synced.

5. Log Node: Google Sheets

• Node: Google Sheets

• Settings:

• Operation: Update

• Spreadsheet ID: Inventory sheet

• Range: A:C

• Key: SKU column

• Value: New quantity

• Output: Centralized stock log.

1. Prepare n8n Environment

• Navigate to http://localhost:5678 (or your n8n URL) and log in with your credentials. In the sidebar, click “Workflows,” then select “+ New” and name it (e.g., “Testimonial Collector”). Click “+” on the canvas to open the node selector.

2. Trigger Node: Cron

• Node: Cron

• Settings:

• Cron Expression: 0 10 * * * (daily at 10 AM)

• Output: Daily trigger.

3. Send Request Node: Gmail

• Node: Gmail

• Settings:

• To: Customer email (from CRM or sheet)

• Subject: We’d Love Your Feedback!

• Body: Please share your experience: <Google Form link>

• Output: Feedback request sent.

4. Collect Response Node: Google Forms

• Node: Webhook

• Settings:

• Path: feedback-response

• Google Forms Webhook: https://<n8n-host>/webhook/feedback-response

• Output: Response data (e.g., {{ $json.body.form_response.answers[0].text }}).

5. Update Site Node: HTTP Request

• Node: HTTP Request

• Settings:

• URL: https://<your-site>.com/wp-json/wp/v2/testimonials

• Method: POST

• Authentication: WordPress API key

• Body: { "title": "Testimonial", "content": "{{ $node["Webhook"].json.body.form_response.answers[0].text }}", "status": "publish" }

• Output: Testimonial published.

• Flow: Cron → Gmail → Webhook → HTTP Request.
• Execution: ~10 seconds per response.

• Saves ~30 minutes/testimonial.
• Builds trust with social proof.
• Enhances marketing automatically.

• Email Fail: Check Gmail API key.
• Site Update Fail: Verify WordPress API.

Ready to transform your business with our technology solutions? Contact Us today to Leverage Our AI/ML Expertise.