Should Back Market Build a Bulk-Order Checkout with Invoicing? Validate, Size, Decide

Quick Overview

A Back Market product execution question: a colleague says many shoppers want to buy devices in bulk and proposes a checkout flow with invoicing for them. It tests how a PM validates and sizes a stakeholder's claim, compares lighter options with a full build, and makes a measurable decision.

Should Back Market Build a Bulk-Order Checkout with Invoicing? Validate, Size, Decide

Company: Back Market

Role: Product Manager

Category: Product / Decision Making

Difficulty: medium

Interview Round: Other

You lead the purchase experience at Back Market. A colleague says many shoppers are trying to buy products from sellers in large quantities, and he believes the answer is a dedicated checkout funnel with invoicing for these buyers. What do you do? ```hint Treat the request as a hypothesis Before debating the funnel, ask what evidence sits behind "a lot of users", who those buyers are, and what actually stops them from completing a large order today. ``` ### Clarifying Questions - What is the colleague's evidence: support tickets, buyers hitting a quantity limit, sales enquiries, or large carts that never convert? - Are these buyers businesses equipping staff, schools, resellers, or households buying several devices at once? - Today, can a shopper get an invoice in a company's name for an ordinary order, and is there a limit on units per order or per listing? - What is the purchase team optimizing for this period, and what would this build push off the roadmap? ### What a Strong Answer Covers - Checking and sizing the colleague's claim with data before agreeing to build - Who the bulk buyers are, the job they are trying to get done, and the specific blockers in today's flow - Lighter alternatives compared with the full funnel, judged on impact, cost and fit with how marketplace sellers operate - A clear decision, a staged test plan, and success metrics with guardrails - Risks particular to large orders: stock spread across sellers, fraud and reselling, invoicing rules and returns ### Follow-up Questions - If the data shows most of these buyers are resellers stocking their own shops, would you still serve them, and how? - Suppose the one real blocker is that small businesses cannot get an invoice they can use for tax purposes. What is the smallest change that would test that? - A business wants many identical laptops, but no single seller has that many in the same condition grade. How should the product handle it?

Overview: A Back Market product execution question: a colleague says many shoppers want to buy devices in bulk and proposes a checkout flow with invoicing for them. It tests how a PM validates and sizes a stakeholder's claim, compares lighter options with a full build, and makes a measurable decision.

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Back Market
Mar 28, 2025
mediumProduct ManagerOtherProduct / Decision Making
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You lead the purchase experience at Back Market. A colleague says many shoppers are trying to buy products from sellers in large quantities, and he believes the answer is a dedicated checkout funnel with invoicing for these buyers. What do you do?

Clarifying Questions Guidance

  • What is the colleague's evidence: support tickets, buyers hitting a quantity limit, sales enquiries, or large carts that never convert?
  • Are these buyers businesses equipping staff, schools, resellers, or households buying several devices at once?
  • Today, can a shopper get an invoice in a company's name for an ordinary order, and is there a limit on units per order or per listing?
  • What is the purchase team optimizing for this period, and what would this build push off the roadmap?

What a Strong Answer Covers Guidance

  • Checking and sizing the colleague's claim with data before agreeing to build
  • Who the bulk buyers are, the job they are trying to get done, and the specific blockers in today's flow
  • Lighter alternatives compared with the full funnel, judged on impact, cost and fit with how marketplace sellers operate
  • A clear decision, a staged test plan, and success metrics with guardrails
  • Risks particular to large orders: stock spread across sellers, fraud and reselling, invoicing rules and returns

Follow-up Questions Guidance

  • If the data shows most of these buyers are resellers stocking their own shops, would you still serve them, and how?
  • Suppose the one real blocker is that small businesses cannot get an invoice they can use for tax purposes. What is the smallest change that would test that?
  • A business wants many identical laptops, but no single seller has that many in the same condition grade. How should the product handle it?