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.