You're a PM for Facebook Marketplaces and return from a 10-day vacation to find that traffic has dropped by 10%. What would you do?

Upon returning from vacation to a 10% traffic drop on Facebook Marketplace, my immediate actions would be:

1. Clarify the Metric: Confirm that "traffic" refers to users accessing the Marketplace tab or section.
2. Diagnose the Drop:
   • Scope: Analyze the drop by segment (e.g., by region, device, user type, specific features within Marketplace).
   • Timing: Pinpoint the exact start date and duration of the decline.
   • Correlation: Check for any concurrent events or changes (e.g., new feature launches, algorithm updates, competitor activity, external events).
3. Hypothesize Causes: Based on the diagnosis, form hypotheses such as technical issues (bugs, outages), changes in user behavior, shifts in content quality or relevance, decreased engagement from other Facebook features, or external market factors.
4. Prioritize & Investigate: Focus on the most likely causes and gather data to validate or invalidate hypotheses. This might involve working with engineering, data science, and marketing teams.
5. Formulate Solutions: Develop targeted solutions based on the confirmed root cause(s), which could range from technical fixes to A/B testing new features or marketing campaigns.
6. Monitor & Iterate: Implement solutions and closely monitor traffic metrics to ensure recovery and identify any further issues.