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Shopify·Growth Product Manager·Onsite - Product Sense / Strategy·Senior

Senior
May 2026

Summary

Shopify interview focused on merchant acquisition strategy across social platforms. Pretty lean on details but the one question they asked was meaty enough to chew on for a while.

Questions Asked (1)

Q1

How would you compare the effectiveness of Facebook versus Instagram for acquiring new merchants?

Product StrategyProduct Analytics & MetricsGo-to-Market (GTM)
Author's notes

I went straight to funnel metrics and audience segmentation, which felt right, but I spent too long on the obvious stuff like CPM differences and not enough on the actual merchant journey.

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AI HintsAI Generated

Suggested Approach

Start by clarifying the goal: acquiring new merchants for Shopify. Then compare Facebook and Instagram across key dimensions like audience, ad formats, targeting, cost, and conversion rates, using a data-driven framework. Conclude with a recommendation on which platform to prioritize based on Shopify's merchant acquisition strategy and suggest testing both with clear metrics.

Pro tip: Emphasize the importance of incrementality testing and attribution modeling to avoid overvaluing one platform due to last-click attribution. Also, consider the role of organic vs. paid and the impact of creative assets tailored to each platform.

1. Define Success Metrics

Identify key metrics for merchant acquisition, such as CAC, conversion rate, LTV, and payback period. Ensure alignment with Shopify's overall growth objectives.

2. Analyze Audience and Targeting

Compare the demographics, psychographics, and targeting capabilities of Facebook vs. Instagram. Consider which platform better reaches potential merchants (e.g., small business owners, entrepreneurs).

3. Evaluate Ad Formats and Creative

Assess how each platform's ad formats (e.g., Stories, Reels, Feed) and creative styles impact engagement and conversion for merchant acquisition. Consider the need for platform-specific creative.

4. Assess Cost and Performance

Compare historical or benchmark data on CPM, CPC, CPA, and ROAS for merchant acquisition campaigns on each platform. Factor in seasonality and competition.

5. Recommend and Test

Based on the analysis, recommend which platform to prioritize or how to allocate budget. Propose a structured A/B test or incrementality experiment to validate assumptions.

Key Points to Mention

  • Differences in audience intent: Facebook may be better for broad awareness, while Instagram excels at visual storytelling for younger entrepreneurs.
  • Platform-specific ad formats: Instagram's Shops and product tags can drive direct action, while Facebook's Lead Ads can capture merchant info.
  • Attribution challenges: Cross-platform attribution and the need for incrementality testing to measure true lift.
  • Cost efficiency: Instagram often has lower CPMs but may have higher CPA for certain demographics; Facebook's advanced targeting can reduce waste.
  • Creative strategy: Tailoring creative to each platform's native style (e.g., Reels vs. Feed) significantly impacts performance.
  • Testing framework: Propose a geo-based or audience-based split test to compare platforms with statistical rigor.

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