Treecat Now Supports Amazon + FBA Multi-ChannelFulfillment

May 21, 2026

Big news from Treecat.io: Amazon is now officially supported!

That means sellers can now crosslist inventory between Amazon and other marketplaces while Treecat automatically manages sold listings and inventory syncing.

Even more exciting: Treecat supports both Amazon FBA (Fulfillment by Amazon) and FBM (Fulfilled by Merchant) sellers.

What This Means for FBA Sellers

If you use Amazon FBA, Treecat now supports Amazon Multi-Channel Fulfillment (MCF).

In simple terms:

  • You store inventory in Amazon’s warehouses
  • Crosslist those items using Treecat
  • If an item sells on another marketplace like eBay, Amazon ships it directly to that customer
  • Treecat automatically updates inventory everywhere else

So if one of your listings sells on eBay:

  • Treecat removes it from Amazon
  • Amazon fulfills the order for your eBay buyer

Less work. Less risk of overselling. More automation.

FBM Sellers Are Supported Too

If you fulfill your own orders (FBM), Treecat still helps automate your workflow.

You can crosslist inventory between:

  • Amazon    
  • eBay
  • Poshmark    
  • Mercari    
  • Whatnot    

When an item sells on one platform, Treecat automatically removes it from the others.

How It Works

Inside Treecat:

  1. Connect your Amazon account in Settings → Platforms
  2. Sync your Amazon inventory
  3. Use Treecat’s AI Autofill to crosslist items to marketplaces like eBay
  4. Treecat handles inventory syncing automatically

For FBA sellers, you can also enable Multi-Channel Fulfillment and choose packaging preferences, including unbranded packaging for non-Amazon orders.

More Marketplace Support Coming Soon

Additional integrations are on the way, including:

  • Etsy
  • Depop
  • Facebook Marketplace

That means sellers will soon be able to use Amazon inventory to fulfill orders across even more platforms through Treecat.

If you’ve wanted a more automated way to scale your ecommerce business, this is a major step forward.

Learn more at Treecat.io or join the conversation in the Treecat subreddit.