When a marketplace launch generates fewer sales than expected, brands tend to look first to their product listings. But success also depends on choosing the right marketplace for the brand's products, customers and growth goals.
Today, there are more marketplace options than ever, with channels serving every category, region and customer segment. Marketplaces accounted for 83.4% of global eCommerce GMV (opens in a new tab) in 2025, up from 81% in 2023, according to researcher ECDB.
While this momentum creates more ways for sellers to reach new buyers, it also complicates marketplace selection. A marketplace with millions of shoppers isn't automatically right for your brand. If the audience doesn't align with your products, the competition is overwhelming or the fees cut into margins, even a perfect marketplace launch will struggle to produce meaningful returns.
This post breaks down the key factors small and medium-sized businesses (SMBs) should evaluate so they can thrive on marketplaces where their products, customers and business model are a strong fit.
Why marketplace selection is a strategic decision
Growing brands approach marketplace expansion in one of two ways: they launch on the largest marketplace first because it seems like the obvious choice, or they try to list everywhere as quickly as possible.
Both approaches run the risk of wasting resources.
Every marketplace comes with its own customers, competitive environment, fee structure and operational requirements. A marketplace isn't just a choice about where to sell — you're choosing which customers you'll reach, how much you'll spend to reach them and how much work it will take to grow.
If brands select the wrong marketplace, they'll spend weeks preparing product data, onboarding and managing inventory — all before knowing if the channel is a good match. If sales don't increase after launch, those resources can't be re-invested in better-performing channels.
However, SMB brands that take time to research marketplaces before launching are more likely to find channels where they can gain traction quickly. In marketplaces, that early momentum — through sales, reviews or visibility — makes it easier to keep growing.
Five factors to evaluate when choosing a marketplace
1. Category and product fit
A marketplace may look great on paper. But is it truly where your customers shop?
One marketplace may support your products but not attract enough customer demand, while another may attract shoppers who are actively browsing your category and ready to buy.
Before committing, look at how well your category actually performs, not just how many shoppers the marketplace attracts.
Start by asking:
- Is there strong demand for products like yours?
- How many active sellers compete in your category?
- Are shoppers discovering products organically, or is paid advertising driving visibility?
A marketplace with a smaller but highly-engaged audience will often outperform a much larger platform where your products struggle to stand out.
2. Audience alignment
Each marketplace attracts different shoppers with different price expectations and purchase intent. Some prioritize value and convenience; others focus on premium products and specialty categories.
For example, a niche outdoor apparel brand may have better conversion rates on a curated marketplace than on a general retail marketplace where shoppers mostly compare prices.
The brands already succeeding on a marketplace tell you a lot about the shoppers it attracts. If brands like yours are selling well, that's a strong signal that you're looking in the right place.
3. Fee structure and margin impact
Commission rates aren't the only cost of selling on a marketplace.
Listing fees, shipping charges, payment processing and other costs all chip away at profitability.
Before launching, it's worth creating a profitability model for each marketplace that includes:
- Commission fees
- Shipping and fulfillment costs
- Advertising expectations
- Returns processing
- Operational labor
- Any marketplace-specific seller fees
A marketplace with exceptional traffic doesn't matter much if the combined fees eat into your margins. If you understand your upfront costs, you're more likely to find marketplaces that support profitable growth rather than just more orders.
4. Competitive landscape
High traffic sounds appealing. But how many of those shoppers are really looking for products like yours?
Some categories are dominated by established sellers with thousands of reviews and sophisticated advertising strategies. Breaking into those categories may take considerable time and effort before seeing meaningful return on investment (ROI).
However, other marketplaces offer less crowded categories where newer brands have a better chance to get noticed.
To figure out where you stand competitively, search your core products and assess the top-selling brands.
Compare:
- Review counts
- Pricing strategies
- Listing quality
- Brand diversity among top sellers
These signals will reveal how competitive a category is and whether you have a realistic shot to succeed.
5. Onboarding and operational requirements
Each marketplace has its own rules for product data, images, fulfillment, inventory updates, customer service, and seller performance. Some also require dedicated integrations or strict service-level agreements (SLAs) that can stretch smaller teams.
Underestimating these requirements can lead to listing errors, compliance penalties and delayed launches.
Before choosing a marketplace, ask yourself:
- Can your current systems support the required product data?
- Can your team keep inventory and pricing accurate across channels?
- Can you consistently meet the marketplace's fulfillment and customer service expectations?
If the answer to any of these questions is no, think carefully about whether your team can meet those expectations before launch. Choosing a marketplace that your brand is ready to support operationally makes it easier to launch successfully and scale over time.
How to build a marketplace shortlist
Once you've narrowed down your options, compare them side by side. A simple scorecard makes it easier to see which marketplaces fit your brand.
Rate each marketplace against the five factors from the previous section:
- Category fit
- Audience alignment
- Margin impact
- Competitive landscape
- Operational complexity
The weight of each factor should be based on what matters most to your business. Brands with tighter margins may prioritize profitability; premium brands may emphasize audience fit; brands with lean teams may focus on simplifying operations.
The most effective method for most SMB brands is to start with one high-volume marketplace and one or two more specialized channels that closely match their category.
One of the main benefits of this approach is it helps reduce dependency on any single marketplace. If a marketplace changes its search algorithm, raises seller fees or updates its policies, your sales can suffer overnight. Selling across multiple marketplaces spreads that risk while giving you more possibilities to reach new customers.
Yet it's critical to expand systematically and not everywhere at once. Launching on two marketplaces successfully is better than launching on six marketplaces poorly. Success on your first few channels creates a playbook you can apply to every marketplace that follows.
How Mirakl Connect helps brands find and launch on the right marketplaces
Evaluating marketplaces is only half the challenge. Getting products live quickly and managing multiple marketplaces is where many brands get stuck.
Mirakl Connect (opens in a new tab) addresses both of these challenges. The platform gives brands access to more than 450 Mirakl-powered marketplace channels across industries, regions and retail categories, making it easier to discover marketplaces that fit their brand without researching and connecting to each one individually.
Preparing product data for multiple marketplaces can quickly become a time-consuming, manual process. AI-powered Catalog Transformer (opens in a new tab) automates much of that work by categorizing product data (opens in a new tab) and matching marketplace requirements and filling in missing attributes. Instead of manually reworking every listing, brands can automatically prepare their catalogs (opens in a new tab) in a fraction of the time.
Incomplete product data is one of the biggest causes of delayed launches. GEO Analyzer (opens in a new tab) reviews catalogs for missing or incomplete product information, so you can fix issues before submitting listings.
Mirakl Connect also keeps pricing and inventory synchronized across connected marketplaces through APIs, SFTP and pre-built integrations, helping make sure customers always see accurate product information.
Perhaps most importantly, brands only need to connect their systems once. That single connection supports expansion across the Mirakl Connect marketplace network, making the next marketplace launch faster and more efficient.
Make every marketplace decision count
Choosing the right marketplaces is one of the best investments eCommerce brands can make. It influences where they spend budget, how quickly they improve sales and which customers discover their products.
Instead of chasing the biggest marketplace or trying to launch everywhere, start with one marketplace, measure what works, then expand from there. The best marketplaces are always the ones that give your brand the best chance to win.
Explore the Mirakl Connect marketplace network (opens in a new tab) and find the right channels for your brand.
Frequently Asked Questions
There is no universal answer, but most SMB brands benefit from starting with one or two well-chosen channels before expanding. Focus first on the marketplaces with the strongest category and audience fit, then scale once you have a repeatable onboarding process in place.
It depends on your product, brand positioning, and competitive situation. Large general marketplaces offer volume and visibility; niche marketplaces often have less competition and more targeted audiences. Many successful brands use a combination of both.
Look beyond headline commission rates. Factor in listing fees, fulfillment costs, advertising requirements, and any mandatory promotional participation. Build a per-unit margin model for each target channel before making a decision - the total cost of selling on a channel can look very different from the commission rate alone.
Choosing based on name recognition rather than category fit. A high-traffic marketplace dominated by established players in your category can be very hard to break into without significant ad spend. Always evaluate the competitive landscape before committing to onboard.
Mirakl Connect gives brands access to 450+ Mirakl-powered marketplace channels across categories and geographies, with the tools to identify the right fit for your catalog. Once you have chosen your channels, Mirakl Connect's AI-powered Catalog Transformer and single-integration model make onboarding fast and scalable.
