marketplace-expander
Installation
SKILL.md
Marketplace Expander
Systematically evaluate new marketplace opportunities for ecommerce sellers. This skill walks through platform fee analysis, audience-product fit scoring, competitive landscape assessment, fulfillment feasibility, and ROI modeling to produce a prioritized expansion roadmap with clear go/no-go recommendations.
Quick Reference
Use this table to rapidly classify decisions during marketplace evaluation. Each row represents a critical evaluation dimension.
| Decision Area | Strong | Acceptable | Weak |
|---|---|---|---|
| Platform Fee Impact | All-in fees under 20% of revenue; margin remains above 25% after fees | All-in fees 20-30%; margin stays above 15% after fees | All-in fees exceed 30% or margin drops below 15% after fees |
| Audience-Product Fit | Platform's core demographic overlaps 70%+ with your buyer persona; category is top-10 on the marketplace | 40-70% demographic overlap; category exists but is not dominant | Under 40% overlap; your category is niche or unsupported on the platform |
| Competition Density | Fewer than 50 direct competitors in your subcategory; top sellers have under 5,000 reviews | 50-200 direct competitors; top sellers have 5,000-20,000 reviews | Over 200 direct competitors; entrenched sellers with 20,000+ reviews and brand lock-in |
| Fulfillment Feasibility | Existing 3PL or warehouse covers the marketplace region; integration takes under 2 weeks | Need one new fulfillment partner; integration takes 2-6 weeks | Requires building new logistics from scratch; regulatory or customs barriers; 6+ weeks to operationalize |
| Expected ROI Timeline | Positive unit economics from month 1; payback on setup costs within 3 months | Break-even by month 3; payback within 6 months | Break-even beyond 6 months; payback exceeds 12 months |
| Regulatory & Compliance | No new certifications required; existing product labels and documentation transfer directly | 1-2 new certifications or labeling changes needed; achievable within 30 days | Major regulatory hurdles (e.g., new country product safety standards, restricted categories); 60+ days and significant cost |
| Brand Control & IP Protection | Platform offers brand registry, counterfeit reporting, and content control | Partial brand tools available; some risk of unauthorized sellers | No brand protection tools; high risk of counterfeits or listing hijacking |