Marketplace Advertising: Grow Sales on Trendyol and Amazon

Why Marketplace Advertising Matters

Selling on Trendyol and Amazon means competing with thousands of listings for the same buyer intent. Organic visibility alone rarely keeps pace with active sellers, which is why marketplace advertising has become a core part of any serious growth plan.

Sponsored product ads put your listings in front of shoppers exactly when they are searching. Done well, these campaigns do more than drive immediate sales; they also build ranking signals and product history that support long-term organic performance.

The goal is not simply to spend more. It is to spend deliberately, measure results honestly, and reinvest in what works. This guide breaks down how to approach that on both platforms.

Setting Up Sponsored Product Ads on Trendyol and Amazon

Both platforms share a similar logic: you promote individual products against search terms and category placements. Start by identifying your best listings, meaning items with strong reviews, competitive pricing, and healthy stock levels. Advertising a weak listing usually just amplifies its problems.

On Amazon, you can begin with automatic campaigns to let the system discover relevant search terms, then move winning keywords into manual campaigns for tighter control. On Trendyol, focus your budget on high-intent product and category placements where shoppers are ready to buy.

Keep your product pages ready before you spend. Clear titles, accurate attributes, quality images, and complete descriptions all affect conversion. Traffic that lands on a poor listing wastes budget regardless of how well the campaign is targeted.

Managing Your Advertising Budget

A common mistake is spreading a small budget across too many products and keywords. Concentrate spend where you have the best chance of a return, then expand once you see stable results.

Set daily budgets that you can sustain, and review them by product rather than as one lump sum. Some items justify aggressive spend because they carry good margins or lead to repeat purchases, while others should be capped tightly.

Treat the first weeks as a learning phase. Give campaigns enough time and data before making major changes, since reacting to a single day of results often leads to unstable performance.

Understanding and Controlling ACoS

ACoS, or Advertising Cost of Sales, is the share of ad-driven revenue you spend on ads. A lower ACoS means more efficient spend, but the right target depends on your product margins, not a universal benchmark.

Calculate your break-even ACoS first: the point where ad spend equals your profit margin on a sale. Anything below that is profitable on the ad itself; anything above may still make sense if you are investing in ranking or launching a new product.

Improve ACoS by cutting or reducing bids on search terms that spend without converting, and by raising visibility on terms that consistently perform. Better listings and reviews also lift conversion rates, which lowers ACoS without changing a single bid.

Reading the Data and Scaling What Works

Review performance on a regular schedule rather than constantly. Look at spend, sales, conversion rate, and ACoS together, since no single metric tells the full story.

When a campaign proves profitable and stable, scale it gradually by increasing budgets and expanding to related keywords or products. Sudden large increases can disrupt the balance you worked to reach.

Keep records of what you change and when. Over time this history helps you separate genuine trends from seasonal noise and make decisions based on evidence rather than guesswork.

Turning Ads Into Sustainable Growth

Marketplace advertising works best as an ongoing discipline: test, measure, refine, and reinvest. The sellers who grow steadily are usually the ones who treat their campaigns as a system rather than a one-time push.

If you want a partner to build, manage, and optimize your Trendyol and Amazon campaigns, our team at Piküp Medya can help you align budget and ACoS targets with real business goals. Reach out to discuss how we can support your marketplace growth.