4Seller: Order & Inventory

4Seller: Order & Inventory

Pricing
Free to install. Additional charges may apply.
Popular with stores like yours
Based in United States
Rating
5.0 (49)

Manage marketplace orders, inventory, listings, shipping, and Amazon MCF/FBA in one system.

4Seller helps multichannel merchants manage ecommerce operations from one dashboard. Connect Amazon, Walmart, eBay, TikTok Shop, Etsy, Temu, SHEIN, and other marketplaces to organize listings, inventory, orders, shipping, and fulfillment. Sync listings and stock levels across channels to reduce manual updates and help prevent overselling. Process marketplace orders in bulk, compare carrier rates, buy and print shipping labels, and send tracking numbers back to sales channels.

4Seller helps multichannel merchants manage ecommerce operations from one dashboard. Connect Amazon, Walmart, eBay, TikTok Shop, Etsy, Temu, SHEIN, and other marketplaces to organize listings, inventory, orders, shipping, and fulfillment. Sync listings and stock levels across channels to reduce manual updates and help prevent overselling. Process marketplace orders in bulk, compare carrier rates, buy and print shipping labels, and send tracking numbers back to sales channels. more
  • Manage orders across Amazon, Walmart, eBay, Etsy, Temu, SHEIN, and TikTok Shop
  • Sync inventory across channels, locations, SKUs, and bundles
  • Create, migrate, and manage product listings across marketplaces
  • Buy USPS, UPS, FedEx, GOFO, UNIUNI, SWIFTX, and Shippo shipping labels in bulk
  • Automate Amazon MCF/FBA fulfillment and sync tracking numbers
Popular with stores like yours
Based in United States

Languages

English, Spanish, French, Italian, German, and Chinese (Simplified)

Works with

  • Amazon
  • Fedex
  • Shippo
  • TikTok shop
  • USPS
  • Walmart

Pricing

Free

Free to install

4Seller is free to use. (shipping fees charged solely by third-party logistics carriers)

All charges are billed in USD.

Reviews (49)

Overall rating
5
Counts per rating level
  • 98% of ratings are 5 stars
  • 0% of ratings are 4 stars
  • 2% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
March 31, 2026

I’ve been using 4Seller for my Shopify store, and it has made a noticeable difference in how efficiently I manage my business.

The inventory synchronization and product mapping features are extremely reliable, especially when working across multiple platforms. It saves a lot of manual effort and reduces errors that usually happen with multi-channel selling.

One of the standout aspects for me is their support team. They are responsive, knowledgeable, and quick to resolve issues, which is critical when running an eCommerce store. The onboarding process was also smooth and easy to follow.

Overall, 4Seller is a powerful and dependable tool for anyone managing products across different marketplaces. It has streamlined my workflow and helped me stay organized as my store grows.

Rayz Mart
United States
6 months using the app
April 27, 2026

I’ve had a great experience using 4Seller for my e-commerce business. This app is not only useful for Shopify, but also for managing marketplace integrations across different sales channels. It is a powerful all-in-one solution for product listings, inventory synchronization, order management, and keeping everything organized in one place.

In my opinion, 4Seller can easily replace many of the paid tools available for marketplace integration and multi-channel selling. It offers strong functionality, saves time, and helps simplify operations without needing to rely on multiple separate apps or services.

What stands out the most is the support team. Setup and integrations can sometimes be complicated with e-commerce tools, but 4Seller makes the process much easier thanks to their responsive and knowledgeable support.

Special shout out to Vikta for her professionalism, patience, and excellent assistance. She was very helpful, clear, and attentive throughout the process, making sure everything was handled properly and that my questions were answered.

Overall, 4Seller is a powerful and reliable app for any online seller looking to streamline marketplace integrations, manage inventory, simplify orders, and save time. Highly recommended.

Kasa Style
United States
25 days using the app
May 28, 2026

4Seller has been a great solution for managing our multichannel business. The integration with Shopify and Amazon FBA works very well and saves us a huge amount of time every day.

The interface is clear, synchronization is fast, and the support team is responsive and helpful whenever needed. We especially appreciate the automation features for orders, inventory, and marketplace management.

A very powerful tool for scaling an e-commerce business efficiently. Highly recommended!

Everbloom
France
3 months using the app

Support

App support provided by 4Seller Technology (America) Co.,Ltd.

Developer

4Seller Technology (America) Co.,Ltd

324 S DIAMOND BAR BLVD, UNIT NUM 717, DIAMOND BAR, CA, 91765, US

Launched

July 13, 2023

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