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Open-ended
Root Cause Analysis
Hard

PM Interview: "E-commerce conversion rate has suddenly decreased last week. How would you find the cause?"

5 min read

🔎 What They're Testing

Assesses ability to triage incidents, analyze funnel data, and validate hypotheses rapidly.

📋 Rubric: What a Good Answer Covers

  • Reviews release, traffic source, device/region segmentation
  • Checks all critical user flows (add-to-cart, payments, etc.)
  • Prioritizes data-driven investigation
  • Validates fixes with A/B or rollback
  • Defines clear success metrics

🧠 Key Insights

  • Segmentation by source/device/region solves most issues
  • Product/release check is critical first step
  • Speed matters: fast rollback/test

🔗 Users Also Explored

How do you triage checkout button errors?

How do you investigate negative A/B test results?

😎 Confident enough? Start a mock interview with a random question now.