The verdict in three sentences
A marketplace is a two-sided market: without sellers there is nothing to buy, and without buyers the sellers leave. The cold start rule is clear: seed supply first, recruiting your first 100 sellers by hand, with onboarding under 30 minutes and an intro commission. In 2026, success is measured by three numbers: seller CAC, time-to-first-sale and active-seller rate at M+3.
The seller onboarding funnel
Recruiting a seller is not enough: they must list, sell and stay. Here is the typical funnel and the pass rates to target.
| Step | Seller action | Pass rate | Time target |
|---|---|---|---|
| Contact | outreach, fair, word of mouth | 100 % | - |
| Sign-up | account created | 55-70 % | 5 min |
| First product | 1 listing published | 60-75 % | 15 min |
| Catalog | 5+ products | 50-65 % | 30 min |
| First sale | 1 order received | 40-55 % | < 14 days |
| Active M+3 | still selling | 40-60 % | - |
Out of 100 sellers contacted, you sign up around 60, of whom 40 publish a real catalog and 25 make a first sale. That is normal: focus on lifting each barrier, especially the first sale.
Seller CAC and acquisition levers
Each channel has a different cost and quality. Here are 2026 orders of magnitude in Senegal and Côte d'Ivoire.
| Channel | Seller CAC FCFA | Volume | Quality | Time-to-first-sale |
|---|---|---|---|---|
| Field outreach | 10,000 - 20,000 | low | very good | 7-14 days |
| WhatsApp/Facebook groups | 3,000 - 8,000 | high | medium | 14-30 days |
| Seller referral | 5,000 - 10,000 | medium | good | 10-20 days |
| Targeted ads | 8,000 - 15,000 | medium | variable | 15-30 days |
| Fairs / markets | 12,000 - 25,000 | low | excellent | 7-14 days |
For your first 100 sellers, favor field outreach and referral: CAC is higher but the activation rate is far better, which matters more than raw volume at launch.
Kolonell referral partner program
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Recruiting sellers is a lot like referring clients: that is exactly what the Kolonell referral partner program rewards. You introduce a project owner, we build their platform, you earn a commission. 2026 rates: 15 % + 5 % recurring for a showcase site, 12 % for e-commerce, 10 % for a marketplace, 8 % for an institutional project. A partner who brings a 6,000,000 FCFA Growth marketplace earns 600,000 FCFA in commission. It is a simple way to monetize your network of entrepreneurs and merchants.
Mini case study
Aminata launches a fashion marketplace in Dakar. She recruits her first 100 sellers over 8 weeks: 60 via field outreach (CAC 15,000 FCFA) and 40 via referral (CAC 8,000 FCFA), a total budget of 1,220,000 FCFA. At M+3, 52 sellers remain active (52 %), generating a GMV of 4,500,000 FCFA. Her average seller CAC of 12,200 FCFA pays back once an active seller generates more than 15,000 FCFA in cumulative commission, usually reached within 2 months.
FAQ
Should I recruit sellers or buyers first? Sellers, almost always. A buyer landing on an empty catalog never returns; a seller will tolerate a bit of thin traffic if sign-up is free and fast.
What seller CAC is acceptable in 2026? Between 8,000 and 20,000 FCFA depending on channel. What matters is the ratio between that CAC and the cumulative commission an active seller generates over 12 months.
How long should seller onboarding take? Aim for under 30 minutes from sign-up to a 5-product catalog. Beyond that, drop-off rises sharply.
What is a good active-seller rate at M+3? Between 40 % and 60 %. Below 40 %, your onboarding or buyer demand is too weak. A fast first sale is the best predictor of retention.
Does an intro commission help at launch? Yes: offering 0 % commission for the first 30 days or first 10 sales lowers the entry barrier and speeds up time-to-first-sale.
Let's talk about your project. We'll build your seller acquisition plan and sub-30-minute onboarding, or you become a Kolonell referral partner. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
