Product improvements for Facebook groups where members sell items to each other
Company: Meta
Role: Product Manager
Category: Product Design & Strategy
Difficulty: medium
Interview Round: Other
Many Facebook groups exist for trading: members post items for sale, and buyers and sellers arrange deals inside the group. How would you make these buy and sell groups better?
```hint Name what the group adds
Work out what a selling group offers its members that a general listings feed does not, and keep your improvement tied to that difference.
```
### Clarifying Questions
- What should the improvement achieve: more completed deals, healthier and safer groups, or more people joining and using them?
- Is the improvement for buyers, for sellers, for the admins who run these groups, or is the focus mine to choose?
- Should these groups stay separate from Marketplace, or may the change connect the two?
- Is one kind of group in scope, such as local neighborhood selling groups or niche groups built around one type of item?
### What a Strong Answer Covers
- What these groups give members beyond a general marketplace, and a goal that follows from it
- The people involved in and around a deal, with a chosen focus and the reason for it
- Pain points along the path from a sale post to a completed deal, ranked
- Prioritized solutions with a first version
- A success metric with guardrails, and a way to measure deals that close offline
### Follow-up Questions
- Most deals end with cash at a doorstep. How would you tell whether your change increased completed deals?
- Admins of large groups say your change makes moderation harder. How do you respond?
- When should a group's sale posts also appear in Marketplace, and when should they stay inside the group?
Overview: A product manager interview question on improving Facebook groups built for buying and selling, where members post items and arrange deals inside the group. It tests explaining what these groups offer beyond a marketplace, choosing whom to focus on, prioritizing fixes and measuring deals that often close offline.