Target launched its third-party marketplace in 2019, Macy's followed in 2022, and Kohl's opened its platform in 2023. Brands selling physical products now maintain seller accounts across 7 to 9 distinct retail marketplaces, each with separate inventory feeds, commission schedules, and content requirements, according to Modern Retail. The shift turns distribution into a platform-management problem.
The mechanics: retailers install marketplace infrastructure to expand assortment without holding inventory. Target's marketplace added 65,000 third-party products to its catalog. Macy's onboarded sellers in home goods, toys, and electronics. Each platform operates its own seller portal, product approval queue, and commission model — Target takes 12-15%, Macy's charges 8-20% depending on category, Kohl's runs flat 15%. Brands upload product data, manage pricing parity across channels, and fulfill orders through multiple dashboards.
It works because customers already trust the retailer's brand and visit for core categories. A shopper looking for bath towels on Target.com scrolls past first-party inventory into marketplace listings without noticing the handoff. The retailer captures the sale, takes commission, and avoids warehousing cost. The brand accesses Target's 200 million annual site visitors without negotiating shelf space or paying slotting fees. Everyone extracts value from the existing traffic.
The play for a small brand: pick one or two retail marketplaces where your customer already shops, not all nine. If you sell kitchen tools, apply to Target and Walmart. If you sell premium home fragrance, try Macy's or Nordstrom's marketplace. Each platform publishes seller requirements and category restrictions on its partner portal.
Start with product data. Export your Shopify catalog to a CSV with SKU, title, bullet points, price, and high-resolution images. Retail marketplaces reject listings with incomplete attributes or low-res photos. Write category-specific attributes — for apparel, include fabric content and care instructions; for electronics, include wattage and certifications. Most platforms accept bulk uploads via spreadsheet or API.
Set pricing 3-8% higher than your direct site to cover platform commission and maintain parity. If you sell a candle for $28 on your site, list it at $30 on the marketplace. Monitor the retailer's first-party pricing in your category — if Target sells similar candles for $24, your $30 listing won't convert. Adjust or exit.
Fulfillment runs two ways: seller-fulfilled or retailer-warehoused. Seller-fulfilled means you ship each order yourself, which works for low-volume brands but creates 2-3 day delays customers dislike. Retailer-warehoused programs like Target Plus or Walmart Fulfillment Services let you send inventory to the retailer's distribution center, but require minimum case packs and prepaid freight. A one-person brand starting out should seller-fulfill, eat the slower delivery, and migrate to warehoused fulfillment once weekly order volume exceeds 50 units.
Track performance by marketplace in a simple spreadsheet: sales, commission paid, return rate, customer complaints. If one platform generates $800/month after commission but costs 6 hours/week in listing maintenance, and another generates $1,200 with 1 hour/week, shift effort to the second. Retail marketplaces reward brands that upload clean data, ship fast, and maintain low return rates with better search placement.
The broader pattern: physical retail is becoming platformized. The shelf is now a feed. Brands that treat retail marketplaces like directories — upload once, ignore — will get buried. Brands that manage them like performance channels — test pricing, refresh images, monitor conversion — will pull incremental revenue from customers they'd never reach direct.