General marketplaces sell more and return less: the math distributors and manufacturers are already doing

The digital channel is no longer an experiment in the automotive aftermarket. Demand has moved, and general marketplaces have become its point of entry. For the manufacturer and the distributor, selling through them looks like the obvious call, the customer is already there. The question is what comes back from each sale made on that channel.

The take rate rises, and it is on the record

The take rate on general marketplaces is not a market estimate. It is a figure the platforms report to their own investors, and it climbs every year. At Mercado Livre, the take rate runs on the order of ~24% (Mercado Libre Q4 2024 IR: https://www.globenewswire.com/news-release/2025/02/20/3030128/9375/en/Mercado-Libre-delivers-stellar-Q4-2024-with-net-revenue-of-6-1-billion-and-net-income-of-639-million.html). At Amazon, commissions run from 8% to 45% by category and the effective cost taken from a seller's revenue can reach up to ~50% (Marketplace Pulse: https://www.marketplacepulse.com/articles/amazon-takes-a-50-cut-of-sellers-revenue). On Shopee, the burden is rising as well.

These percentages are not fixed rates that settle over time. The reported trajectory is one of steady increase, because the business model of these platforms depends on extracting more from each transaction as the seller grows more dependent on the channel.

The math on a single part

A part sold at 200, with a 24% take rate, returns 152 to whoever sold it. That is 48 leaving before any other cost, freight, tax, cost of goods. For an operation working on a 25% operating margin, that slice all but wipes out the result of the sale.

Volume grows, revenue shows up in the report, and margin shrinks in the same move. It is possible to sell more and earn less per unit at the same time, and that is exactly what the math shows.

The cost that never appears on the invoice

The commission is the visible part. There is a second cost that never lands on the invoice: dependency.

When the general marketplace becomes the main point of entry for orders, the platform takes control of three things that belonged to the chain. The relationship with the customer, because it is the platform that knows the buyer, not the distributor. The behavioral data, because it is the platform that sees what each customer searches for, compares and buys. And the pricing, because it is the platform that sets the rules of display, competition and visibility inside the channel.

That larger slice of each sale stays with the general platform. And the distributor ends up operating without seeing what happens at the front line, depending on the general platform to know who its own customer is.

Both channels running in parallel

An auto parts manufacturer in the interior of São Paulo state, with its own network of distributors, had been concentrating its digital sales on the general marketplace. Volume was growing, but margin per order was not keeping pace, and the commercial team could not say who the buyers arriving through that channel actually were.

The decision was not to leave the general marketplace, but to open a second channel in parallel, its own ecosystem with the catalog curated by the manufacturer and the distributors' inventory integrated. The general marketplace kept capturing the new buyer, the one who finds the part through search. The own channel began to retain the recurring buyer, the one who already knows what he wants and comes back to buy.

Within a few months, repurchase started shifting to the own channel, where the marketplace commission does not apply and the customer data stays in the chain. The general marketplace kept bringing in new demand, and the own channel took over the more profitable and more predictable part of the operation, the customer who is already a customer. The two channels did not compete, each kept the kind of sale it does best.

Why this requires a platform

The answer is not to abandon the general channel. It solves a real problem, the demand is there, and ignoring that means giving up volume. The answer is not to depend on it alone.

The two-legged strategy combines using the general marketplace for volume with building your own digital ecosystem in parallel. In that ecosystem, the manufacturer curates the catalog and each distributor sets its own policy for price, inventory, logistics and finance, keeping the customer, the data and the margin inside the chain.

Building that is not putting a storefront online. It is a problem of a governance layer over the partners' ERPs, not a virtual store. Every decision on price, availability and routing has to be deterministic, predictable, within the policy each link has defined.

The final math

Using the general marketplace is the right move. Depending on it alone is what comes at a cost. The chain that builds its own ecosystem, in parallel to the general channel, is the one that keeps volume generating margin, and keeps the customer its own.

The first step is not to build anything, it is to measure. Take the last twelve months of revenue on the general channel and multiply it by the current take rate of the platform you use. The number that comes out is how much of your margin has already gone to the channel over the period. Compare it with the operating margin on that same sale and you have, in a single line, the size of the problem and the urgency of opening the second channel. It is a five-minute calculation that tends to change the conversation in the boardroom.

CWS Platform is a platform built natively for this model. It was designed to run the manufacturer's marketplace with the distribution network's inventory integrated, keeping catalog curation on the manufacturer's side and business policy on each partner's side, with governance over price, inventory, logistics and finance for every operation. It is the infrastructure that lets the chain have its own digital channel, without giving up being present where the demand already is.