At the end of the month, the marketplace dashboard shows 420 thousand TL in revenue and the team is in a celebratory mood. Accounting, however, says the remaining amount after commission, shipping, advertising, and return deductions is much smaller.
This difference stems from mistaking revenue for profit. True profitability in a marketplace only becomes visible when all cost items are aggregated on a product and order basis.
In this article, we explained how to calculate net profit after commission, shipping, returns, and advertising. We also shared the method for distinguishing which products are truly profitable.
Table of Contents
The revenue illusion
The revenue on the marketplace screen is the amount paid by the customer; it is not the amount that goes into your pocket. Making stock and advertising decisions without seeing the difference is dangerous.
Many sellers only account for commissions and forget about shipping. For products with high dimensional weight, shipping can be more expensive than the commission.
In categories where the return rate is high, gross profit also melts away. A product might look like it is "selling" while actually generating losses.
Advertising spend is also misleading when viewed without being tied to orders. Some sales thought to be organic might actually be coming from ads.
Therefore, profitability cannot be managed without a cost breakdown on an order and product basis. Revenue alone should not be a decision indicator.
Decoding commission items
Every marketplace's commission rate varies by category, and talking about a single percentage is wrong. The category selection on the product card directly affects profit.
Besides the commission, there may also be service fees, payment cycle deductions, and return processing fees. Grouping these into a single line called "commission" obscures the analysis.
During campaign periods, additional deductions or mandatory discount contributions may also apply. Contracts and dashboard notifications must be read regularly.
The commission must be accurately transferred against the invoice to your existing ERP system. Otherwise, the financial advisor and operations team will look at different figures.
We explained the channel connection in the marketplace integration article.
Shipping and volumetric weight cost
Shipping cost may seem small compared to the product price, but on low-margin SKUs, it wipes out the profit. If the volumetric weight calculation is wrong, the loss grows silently.
Packaging materials and labor must also be added to the shipping expense. Looking only at the carrier's invoice is insufficient.
Costs vary for the same product going to different cities. Assuming an average shipping cost generates unprofitable sales in distant provinces.
If the cost of free shipping campaigns falls on the seller, the price must definitely be recalculated. "Free shipping" is free for the customer, but expensive for you.
We gathered optimization ideas in the shipping cost optimization article.
The impact of returns on profit
A return is not just the reversal of a sale; round-trip shipping, handling fees, and repackaging are also added. If the product becomes unsaleable, the cost is even heavier.
Gross margin is misleading for products with high return rates. Real profit must be read on the net amount after returns.
Returns caused by size, color, or description issues can be reduced with content improvement. This provides a cheaper profit increase than advertising.
If the return process is slow, the product does not return to stock for a long time and cash is tied up. Fast inspection is an operational part of profitability.
You can find process details in the return process management article.
Advertising and featuring
When advertising costs are viewed without being tied to orders, they create the illusion that "sales increased." Cost per sale (CPS) should be evaluated together with product profit.
Giving aggressive advertisements to a low-margin product grows the turnover while shrinking the profit. Margin should come first, then visibility.
Campaign contributions are also an expense similar to advertising. Keeping them on a separate line provides ease of comparison.
Organic ranking improvement reduces advertising dependency in the long run. However, cutting ads completely in the short term can also produce a drop in sales.
Evaluate channel performance Trendyol order management along with the article.
Product-level net profit
Net profit should be considered with the formula: sales price − product cost − commission − shipping − advertising share − return cost. This formula is applied on an SKU basis.
Products in the same category can produce very different net profits. The revenue leader and the profit leader are often not the same SKU.
Products with negative net profit must either be priced or removed from the catalog. A "loss-making product that drives traffic" should be a conscious decision, not a coincidence.
In products with variants, distinctions should also be made based on size or color. A single average hides the harmful variant.
We discussed the variant structure in the color size variant definitions article.
Channel comparison
The same product leaves a different net profit in different marketplaces. Commission, shipping agreements, and advertising costs vary by channel.
There is no commission on your own site, but the traffic cost and shipping burden are different. Comparison must be made within the same cost bracket.
If the B2B or wholesale channel is also added to this table, priorities become clearer. Some products may produce a loss in retail and a profit in wholesale.
Stock allocation should be made according to channel profitability. Giving all stock to the best-selling channel may starve the most profitable channel.
We explained the multi-channel approach in the multi-channel sales management article.
Price and campaign decision
Discount decisions should not be made below the net profit threshold. The justification that "competitors lowered it" does not legitimize a harmful price.
A simulation must be done before the campaign; the net remaining is calculated with the expected quantity, commission, and shipping. Without a simulation, a campaign is like gambling.
Price lists must be maintained on a channel basis. A single price does not leave the same profit in every channel.
The minimum selling price rule also prevents manual errors in the field or panel. Unauthorized discounting is one of the most expensive operational errors.
List management price list management we summarized in the article.
Reporting routine
A weekly product profitability report is more valuable than a monthly turnover summary. If loss-making SKUs are caught weekly, the damage remains limited.
Reports must combine order, return, and ad data. Data kept in separate Excel files never gives the same truth.
Cost cards in the current ERP system must be matched with marketplace deductions. If the cost is not up-to-date, net profit is a fiction.
On the executive dashboard, net profit and return rate should stand side by side with turnover. Managing with a single metric is flying blind.
We explained the sales report logic in the sales reports article.
Profitability tracking on the platform
EQLEM is a solution platform and does not replace your existing ERP system. By combining operation and channel data, it provides profitability visibility.
When order, commission, shipping, and return are read on the same line, product decision-making speeds up. Double entry and delayed Excel analysis come to an end.
Financial records remain in the existing system; the platform produces the operational profit signal. The two layers complement each other.
Channel integrations help fetch up-to-date deduction data. Manually updated rates become outdated in a short time.
You can see the order-invoice link in the e-commerce order invoice flow article.
Frequently asked questions
Is the commission rate alone sufficient?
No, net profit cannot be calculated without shipping, advertising, returns, and product cost.
Should we remove a loss-making product immediately?
First try fixing the price, bundle, and return reason; if it still does not improve, remove it from the catalog.
Why do accounting and operational figures not match?
Because one is based on the financial period and the other on the moment of the order; a common cost definition must be established.
How often should we check?
Check product net profit weekly and channel summaries monthly.Sales reports article will also strengthen your reading routine.
Growing revenue in the marketplace is easy; protecting profit is hard. Commission is only the first line of the story.
Tie shipping, returns, and advertising to orders; otherwise, your decisions rely on a revenue illusion.
Read the product-based net profit list weekly and manage unprofitable SKUs consciously.
Do not allocate stock without comparing channels; the best-selling channel may not be the most profitable one.
Do not make price and campaign decisions below the threshold; a discount may grow sales while shrinking the company.
By consulting with the EQLEM team, you can clarify your marketplace profitability visibility.

