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Notion·Product Manager·Onsite - Product Sense / Strategy·Senior

SeniorPrefer not to say
Apr 2026

Summary

PM interview at Notion with a single product analytics case. Just one question but it had a lot of surface area and I don't think I covered it as cleanly as I wanted to.

Questions Asked (1)

Q1

Free sign-ups on Notion have dropped by 25%. How would you diagnose what's causing it?

Product Analytics & MetricsRoot Cause Analysis
Author's notes

I jumped straight into segmentation before actually clarifying what 'free sign-ups' even meant to them.

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AI HintsAI Generated

Suggested Approach

Start by clarifying the metric definition and validating the data to rule out measurement issues. Then segment the drop by dimensions like acquisition channel, device, geography, and user cohort to isolate where the decline is concentrated. Finally, correlate with internal changes (product updates, pricing, onboarding flow) and external factors (competition, seasonality) to identify the root cause.

Pro tip: Always check for instrumentation or tracking changes first—a 25% drop often stems from a broken event or a dashboard filter change, not actual user behavior. Mentioning this shows you're data-savvy and avoid chasing phantom problems.

1. Clarify and Validate the Metric

Define what 'free sign-ups' means (e.g., new account creations) and confirm the data source. Check for tracking errors, logging issues, or recent changes in how the metric is calculated.

2. Segment the Data

Break down the drop by dimensions such as acquisition channel, device type, geography, referral source, and user cohort. Identify which segments are most affected to narrow down the cause.

3. Analyze Internal Factors

Review recent product changes, marketing campaigns, pricing updates, or onboarding flow modifications that could impact sign-ups. Check for bugs, performance issues, or UX changes.

4. Analyze External Factors

Consider seasonality, competitive actions, market trends, or broader economic factors. Compare with industry benchmarks or historical patterns to see if the drop is anomalous.

5. Form and Test Hypotheses

Prioritize the most likely causes based on data, then propose experiments or further analysis (e.g., A/B tests, user interviews) to confirm the root cause and inform solutions.

Key Points to Mention

  • Metric definition and data validation to rule out instrumentation issues
  • Segmentation by acquisition channel, device, geography, and user cohort
  • Correlation with internal changes (product updates, marketing campaigns, pricing)
  • Consideration of external factors (competition, seasonality, market trends)
  • Hypothesis-driven approach with prioritization and testing
  • Impact on business goals and potential next steps for remediation

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.