Should I Join a Trendyol Campaign? Decide With a Profit/Loss Calculation

A campaign invite lands in your panel: "Join Flash Products", "Add a product to Big Discount Days". The button is one tap away and the promise of more sales is tempting — but before you tap "join", there is a single question you need to answer: at the discounted price, does this product still make money? The math of a campaign is harsher than you think, because when the price drops only some of your deductions drop with it; shipping and product cost stay fixed. In this article we make the campaign mechanics clear, run the same product through two scenarios at 10% and 25% off, derive the break-even discount rate, and give you a decision checklist. To try it with your own product, you can use the campaign simulator: enter your price, your cost and the discount rate, and see whether the campaign sale is a profit or a loss.

Campaign mechanics: who funds the discount, and what is commission charged on?

Three rules determine the entire campaign calculation:

• The discount comes out of your price. When you enter a campaign, the discounted price is defined relative to your selling price, and in the general scenario you are the one who funds the difference. In some campaign types a Trendyol contribution or a coupon mechanism may kick in — verify the contribution and terms shown on the invite screen in your panel; the calculations in this article assume the base scenario where you bear the entire discount yourself.
• Commission is calculated on the VAT-inclusive amount the customer actually pays. So the discount also lowers the commission deduction — that is the good news. The model is consistent with a non-discounted sale: the base is always the VAT-inclusive list price, the invoice is issued VAT-inclusive, and no extra VAT is added on top. The details and how to verify it on your statement are in the is commission VAT-inclusive article.
• Fixed deductions do not fall with the price. All three prices in this example—600 TL, 540 TL and 450 TL—are above the 350 TL threshold, so shipping uses the full desi tariff (VAT-exclusive, with 20% VAT added) and is the same in every scenario. Below 350 TL, packages of 10 desi or less would instead use the 0–199.99 TL or 200–349.99 TL bracket. Product cost, packaging and any return burden do not fall with the price either. Withholding tax (1%, on the VAT-exclusive amount; it is offset against your income or corporate tax) does fall with the price, but it is already a small line item anyway.

The essence of campaign math is in this asymmetry: revenue falls as a percentage, while a significant part of your costs stays fixed in lira. That is why a discount that looks small on a thin-margin product can wipe out all of your profit. Now let us see it with real numbers.

Same product, two discounts: 10% stays in profit, 25% goes into loss

The assumptions are transparent: a 1-desi product sold at 600 TL VAT-inclusive; a commission rate of 20% (this is a sample rate — check your own category's rate in the panel); a sample 1-desi Aras full-tariff rate of 88.96 TL + 20% VAT = 106.75 TL as of 13 July 2026 (this varies by carrier and period, so verify your own tariff in the panel); a standard platform service fee of 10.99 TL + VAT = 13.19 TL; a product cost of 300 TL; withholding tax of 1% (on the VAT-exclusive amount). Let us put the same product side by side across three scenarios — no discount, 10% off and 25% off:

What the two scenarios tell you is clear: the price dropped 10%, the profit dropped about 86% (from 55.06 TL to 7.56 TL). The campaign is still profitable on this product, but now even three sales do not match what one sale earned before — that is why the "I sold a lot in the campaign" feeling is misleading. At 25% off, the product goes to a 63.69 TL loss per sale. If the campaign did its job and sold 200 units in a month, the bill for that "successful" campaign is a 12,738 TL loss. The month that looks like a revenue record in the panel closes in the negative on your statement. (To keep the table simple we did not separate out the net effect of VAT: the selling price contains sales VAT, while the VAT on the commission and shipping invoices is deducted in your VAT return — the full picture is in the e-commerce VAT guide; for your exact situation, consult your accountant.)

This product's break-even discount is roughly 12%: the fixed costs (300 + 106.75 + 13.19 = 419.94 TL) are only covered at a selling price of 530.5 TL, given the portion left after the deductions that fall with the price (about 79% of the price). Every discount point above that means a loss per sale. Every product's break-even point is different — it varies with its cost, its desi and its commission rate. The campaign simulator builds this threshold and the two-scenario table for you with your own numbers; and to see your non-discounted net profit with all deductions, you can start with the profit calculator.

Rule of thumb: when you see the discount rate on a campaign invite, the first thing to do is calculate that product's break-even discount. If the invite is below break-even, it is a profitability calculation; if it is above, you are now making an investment decision — and an investment should have a goal and a budget.

When is a campaign a profitable decision?

Campaigns are not bad; campaigns without calculation are bad. In two situations, even a discount below break-even can be rational:

• Clearing stock: holding on to an out-of-season product that ties up capital in the warehouse has a cost too — the money tied up, the storage burden, the loss of value. Selling dead stock at 25% off, even if it books a loss per sale, may be no worse than freeing up the capital and reinvesting the recovered money in a product that actually turns over. The critical difference: doing this knowingly and with a total loss limit. If you can say the sentence "clearing this stock will cost me at most X TL", the decision is sound.
• Ranking and review gains: sales velocity feeds visibility; on a new product, the first reviews clearly affect conversion. A campaign can be framed as sacrificing short-term margin to buy position in the listing and social proof. Here too the rule is the same: tie the gain to a measurable goal ("first page on this search by the end of the campaign", "50 reviews") and, when the campaign ends, check whether sales at the non-discounted price have actually risen. A goal-less "visibility" justification is a loophole that legitimizes an open-ended loss.

When does a campaign book a loss?

• Thin margin + fixed deductions: the lesson of the table above. On a cheap, low-margin product the shipping fee already eats a big slice of the revenue; a discount makes that slice even bigger. Entering a deep-discount campaign with a product whose margin is below 10% produces a loss per unit in most scenarios.
• A product that already sells and holds the Buybox: on a product that has demand and has won the Buybox, a discount is usually leaving money on the table. The lowest price you need for competition is already found with margin-protected repricing logic: drop as far as you need to relative to the competitor, and never go below your margin floor. A campaign, by contrast, discounts blindly, at the same depth for everyone.
• A high-return product: a campaign grows the number of sales — and the number of returns too. The shipping and operations cost per return is not affected by the discount; that line item, which reaches around 200 TL as calculated in the return cost article, tips the table over quickly once it lands on top of a margin already thinned by the discount.
• Price anchoring and the risk of it becoming permanent: customers and competitors take the discounted price as a reference. When the campaign ends, returning to the old price can slow your sales velocity; competitors' pricing bots can follow your discounted price and permanently pull the market's floor price down. When you enter a campaign, plan your exit price too.

Decision checklist: before you tap "join"

1. Know your real non-discounted net profit. Commission, shipping, withholding tax, return share and VAT included — not the panel revenue, but what actually reaches you. How to set up the calculation is laid out step by step in the real profit calculation article. A campaign decision made without knowing this number is a step taken in the dark.
2. Calculate the break-even discount rate. Enter your price, cost, desi and commission rate into the simulator; see at which discount your profit hits zero.
3. Where does the invite's discount sit relative to break-even? If below, how much does profitability thin out, and will the increase in volume make up for it? If above, what is the goal — clearing stock, or ranking? Write down the goal and the total loss limit you accept in one sentence.
4. Verify the campaign terms in your panel. Who funds the discount, is there a campaign-specific change to the commission rate, and what are the duration and stock commitments? These details change from campaign to campaign; instead of a general rule, go by the written terms on the invite screen.
5. Factor in the return rate. If the campaign product is a high-return textile item, do not decide before subtracting the return share from the net profit per sale.
6. Plan for afterward. When the campaign ends, what will the price be, and if competitors follow the discounted price, what is your floor? A campaign without an exit plan can turn a temporary discount into a permanent loss.

Frequently asked questions

In a campaign, is commission charged on the discounted price or the original price?

The base for commission is the VAT-inclusive amount the customer actually pays — that is, the discounted price. The discount also lowers the commission deduction. It is easy to verify on your own statement: divide the commission line of a campaign sale by the sale amount, and the result should be your category rate.

Does a flash product campaign cause a loss?

It depends on the product; what determines it is not the type of campaign but the distance between the discount depth and your break-even point. On a wide-margin product even a 25% discount can stay in profit; on a thin-margin product a 10% discount is enough to cause a loss. That is why the only correct answer is "calculate it" — build the table above with your own numbers.

Does it ever make sense to enter a campaign at a loss?

In two situations, yes: clearing dead stock that ties up capital, and taking position for a measurable ranking/review goal. The difference is that the loss is knowing, limited and tied to a goal. An open-ended loss entered into on the grounds of "visibility is good anyway" is not a campaign, it is bleeding.

Make the decision with your own data, not a guess

A campaign decision has two halves: the right calculation at the moment of deciding, and the right tracking throughout the campaign. For the first, the campaign simulator is ready: enter the price, cost and discount rate; see the profit/loss per sale, the break-even discount and the two-scenario comparison. For the second, Verimle: once you connect your Trendyol account, the Profit X-Ray reads the actual deductions of every order from your statement and calculates real profit at the product level — so you can see whether the campaign product actually makes money without waiting for the end of the month. Margin-protected repricing manages your price without dropping below the margin floor, and it detects unexpected deductions and prepares an objection draft. Explore the features — when you say "join" or "skip" to a campaign invite, let it be a number in your hand, not a feeling.

One last reminder: campaign terms, discount obligations and commission/funding effects change from campaign to campaign and from period to period; the profit/loss calculation here is an example and does not replace the current official campaign terms. Before you tap "join", verify the terms from an official source: Trendyol Seller Information Center shows the general campaign rules, while the Trendyol Seller Panel shows the full terms of that specific campaign. And to see the numbers with your own product, use the campaign simulator. This guide was last reviewed on 18 July 2026.