📊 CASE STUDY 📅 February 12, 2025 ⏱️ 8 min read

From Zero to 5,000 Users in 90 Days

How a Romanian C2C marketplace solved the chicken-and-egg problem and acquired 5,000 users in 90 days with €0 marketing budget.

AI

Andrei Ionescu

Growth Lead at GloryAI

THE CHALLENGE

Chicken & Egg

No supply → no demand → no supply

0 → 5,000 users in 90 days
€0 ad spend

📊 User growth curve

📋 Contents

1. The classic chicken-and-egg

The startup (a C2C marketplace for handmade goods) launched in Bucharest with a brutal problem: no sellers meant no buyers, and no buyers meant no sellers.

📉 Month 1 metrics:

  • 12 sellers (all friends & family)
  • 23 listings
  • 0 transactions
  • Marketing budget: €0

2. The strategy: supply first, then demand

2.1 Supply: the "artisan ambassador" program

Instead of trying to onboard hundreds of sellers, they recruited 20 high-quality artisans (ceramics, jewelry, textiles) and offered:

  • ✅ 0% commission for first 6 months
  • ✅ Professional photoshoot (free)
  • ✅ Featured profile on homepage
  • ✅ "Ambassador" badge

Result: 20 ambassadors → 450 listings in 2 weeks.

2.2 Demand: community, not ads

With zero ad budget, they built demand through:

  • Facebook Groups: Founder joined 15 local "handmade" groups. No spam – just helpful comments. Added link in profile.
  • Instagram Takeovers: Each ambassador did a 1-day Instagram takeover. Cross-promotion to both audiences.
  • First 100 buyers: Received a handwritten thank-you note and a 10% discount code. 40% posted about it on social media.

2.3 The viral loop: "Bring a friend"

After the first 100 transactions, they launched a referral program:

Buyer: "Bring another buyer → get €5 credit"

Seller: "Bring another seller → 1 month 0% commission"

K-factor: 1.3 → each user brought 1.3 new users. Viral growth started.

3. 90-day results

5,240 total users
320 active sellers
1,850 transactions

💰 Revenue: €0 → €28,000/month (commission: 5%)

Marketing spend: €0.

4. Key lessons for marketplace founders

✅ Do this

  • Solve supply first, even if small
  • Treat first users as partners, not customers
  • Referral incentives for both sides

❌ Avoid

  • Spending on ads before product-market fit
  • Trying to acquire both sides at once
  • Generic referral programs

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