n8n Bad-Review Alerts: Problem → Architecture → Step-by-Step → Error Handling → Template Download → Results

This post shows you how to build a production-grade bad-review alert system with n8n. We’ll pull reviews from Google Business Profile / Lieferando / TripAdvisor, normalize and score them, log to Google Sheets, and fire WhatsApp alerts for critical cases. You’ll get a downloadable starter template (JSON), a WhatsApp message template, and a Sheets header CSV — so you can import and go.

The problem

Reviews arrive on different platforms, at different times, and with different payload shapes. When a 1★ bomb lands and sits unanswered, it hurts conversion and ranking. Manually refreshing dashboards or inboxes doesn’t scale.

Goal:

  • Check multiple sources on a schedule
  • Normalize review data into a common schema
  • Flag and alert on bad reviews (≤3★ or strong negative keywords)
  • Log everything (for SLAs, QA, coaching)
  • Fail gracefully and notify when your automation breaks

Architecture (one glance)

This is the blueprint we’ll build:

  • Trigger: Schedule (e.g., every 15 minutes)

Learn more about n8n Bad-Review Alerts: Problem → Architecture → Step-by-Step → Error Handling → Template Download → Results

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