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Flipkart·Product Manager·Onsite - Product Sense / Strategy·Intermediate

Intermediate
Jun 2026

Summary

PM interview at Flipkart with a product strategy question around banner monetization. Short session, single question, left me second-guessing my structure the whole way home.

Questions Asked (1)

Q1

What changes would you make to improve the fill rate for Flipkart's banner ad placements?

Product Analytics & MetricsProduct StrategyPricing & Monetization
Author's notes

I went straight to supply-side fixes, more advertiser inventory, better targeting options, that kind of thing.

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AI HintsAI Generated

Suggested Approach

Start by defining fill rate and its importance for Flipkart's ad revenue, then break down the funnel to identify where ad requests go unfilled. Propose targeted improvements across demand, supply, and pricing, prioritizing based on impact and feasibility.

Pro tip: Emphasize the trade-off between fill rate and CPM: pushing fill rate too high can lower ad quality and revenue per impression. Suggest A/B testing and monitoring guardrail metrics like viewability and CTR.

1. Define and Diagnose

Clarify what fill rate means for banner ads and calculate current fill rate. Segment by placement, device, geography, and user cohort to identify low-fill areas.

2. Analyze Root Causes

Investigate why ads aren't filling: demand gaps (fewer bidders), pricing floors too high, technical issues (latency, ad blockers), or inventory quality mismatches.

3. Generate Solutions

Brainstorm changes across demand (more ad networks, direct deals), supply (header bidding, dynamic allocation), pricing (floor optimization), and user experience (ad formats, frequency capping).

4. Prioritize and Test

Use impact/effort matrix to prioritize initiatives. Propose A/B tests with clear success metrics (fill rate, revenue, user engagement) and guardrails.

5. Measure and Iterate

Define KPIs, set up dashboards, and plan for continuous optimization. Consider long-term implications like advertiser satisfaction and user retention.

Key Points to Mention

  • Fill rate definition and its direct impact on ad revenue and advertiser satisfaction.
  • Funnel analysis: ad requests → bids → wins → impressions, identifying drop-offs.
  • Demand-side improvements: adding more demand partners, header bidding, direct sales.
  • Supply-side improvements: optimizing ad placement, viewability, and page load speed.
  • Pricing strategies: dynamic floor prices, yield management, and auction mechanics.
  • Testing methodology: A/B tests, holdout groups, and guardrail metrics to avoid negative user experience.

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