The B2B E-commerce Paradox: Scaling Logistics Is Not Scaling Profitability

Running a business that delivers fresh produce to neighbourhood mama mbogas sounds like a brilliant idea on paper. Kenya has hundreds of thousands of small kiosks, corner shops and informal traders buying stock every single day. If you can build a digital platform that aggregates their demand, buys directly from farmers or manufacturers, and delivers goods right to their doorstep, you should theoretically win the market.

Except the economics of B2B e-commerce in Kenya carry a harsh reality: revenue is not profit, volume is not margin, and moving tons of cabbages across Nairobi requires an astonishing amount of real, physical cash.

For years, venture capital funds poured millions of dollars into African B2B commerce platforms. The thesis was simple. By eliminating the middleman in traditional supply chains, technology startups could capture a slice of the multi-billion-shilling informal retail trade. But as financial pressures mount across the continent, the model itself is facing an existential stress test.

To understand why B2B retail platforms struggle, you have to look at how money actually moves in Kenya's informal economy.

The low-margin trap

Informal retail in Kenya operates on razor-thin margins. A neighbourhood kiosk owner buying cooking oil, rice, or tomatoes is hyper-sensitive to price. If a B2B app offers a crate of tomatoes at KSh 1,500, but the local wholesale market in Wakulima has them for KSh 1,450, the trader will take a matatu to the market.

This leaves B2B platforms with almost zero pricing power. They cannot simply mark up their goods to cover operating costs because their customers will immediately walk away.

To make money, B2B platforms must rely on gross margin, which is the difference between what they buy stock for and what they sell it for. In traditional consumer software, gross margins can exceed 80 per cent because copying a piece of code costs virtually nothing.

In physical supply chains, gross margins are often under 10 per cent. Out of that tiny margin, a B2B startup has to pay for fuel, truck maintenance, driver wages, warehouse rent, cold storage electricity, damaged stock, and technology infrastructure. When your gross margin is 8 per cent and your operational cost to deliver the goods is 12 per cent, every single order loses money.

High friction on the road

Scaling a software app is easy because adding a million new users requires minimal extra infrastructure. Scaling a physical logistics network is the exact opposite. Every new neighbourhood you expand into requires more trucks, more warehouses, more drivers, and more fuel.

In Kenya, logistics friction is notoriously expensive. Fuel prices remain elevated, traffic congestion in urban centres adds hours to delivery runs, and rural road networks increase wear and tear on vehicles.

Food logistics introduces an even tougher complication: perishability. If a shipment of avocados or leafy vegetables sits in a warm truck during a Nairobi traffic gridlock, a percentage of that inventory spoils before reaching the customer. In supply chain management, this loss is known as wastage or shrinkage. For a venture-backed company burning cash to grow, high inventory shrinkage quickly erodes any thin profits achieved through bulk purchasing.

Credit risk and capital cycles

The second big challenge is working capital. Informal traders in Kenya routinely operate on credit. They take stock from suppliers in the morning, sell it throughout the day, and pay for it in the evening or later in the week.

When tech platforms tried to digitise this market, they quickly realized that requiring cash-on-delivery or prepayments limited their growth. To scale up transaction volumes, many platforms were forced to offer inventory credit to small traders.

This turned logistics companies into informal lenders overnight. Managing credit risk among hundreds of thousands of unbanked or underbanked micro-entrepreneurs requires sophisticated underwriting. When macroeconomic conditions tighten, high interest rates hit household budgets, and consumer spending slows down, small traders struggle to clear their stock. Default rates rise, and the B2B platform ends up holding bad debt on top of its heavy logistics expenses.

What comes next for B2B tech?

The struggles within the B2B e-commerce sector signal a broader pivot across Africa's technology ecosystem. The era of growth-at-all-costs, powered by cheap foreign venture capital, has effectively drawn to a close.

Investors are no longer asking how many mama mbogas a startup has onboarded to its app. They are asking whether the business model generates positive unit economics, meaning whether an individual delivery route makes a profit after accounting for all direct costs.

Going forward, surviving platforms are likely to abandon asset-heavy models in favour of leaner operations. Instead of owning giant truck fleets and massive central warehouses, companies may shift toward asset-light marketplace models that connect existing wholesalers directly with logistics providers.

Others are attempting to monetise financial services rather than physical goods, using delivery data to offer payment processing, insurance, and working capital loans.

For Kenya's informal retail sector, traditional wholesale markets like Wakulima and Muthurwa are far from obsolete. Digitising the supply chain offers clear benefits in efficiency, but technology alone cannot eliminate the real-world costs of moving physical goods across African cities. Until platforms solve the fundamental math of gross margins versus delivery costs, scaling logistics will remain a very expensive path to profitability.