Amazon rolls out multichannel tools in Seller Central, letting US sellers manage eBay, Shopify, TikTok and Walmart sales alongside their Amazon businesses
Context & Ripple Effects
Amazon had already extended its merchant reach beyond its marketplace: Multichannel Fulfillment opened Amazon logistics to Walmart sellers in 2025, while the Buy with Prime integration for Shopify connected Amazon delivery benefits to merchants’ own storefronts.
Seller Central is becoming the control surface for those cross-channel relationships. Amazon also said it would open seller tools to third-party AI agents, making a unified merchant workflow more consequential than a standalone dashboard.
First-order effects
- US sellers can manage sales across Amazon, eBay, Shopify, TikTok and Walmart from Seller Central, reducing the need to switch among separate channel tools.
- Amazon gains a more central role in merchants’ day-to-day operations even when a transaction occurs on a competing retail platform.
Second-order effects
- Shopify, Walmart, eBay and TikTok face greater pressure to keep sellers anchored in their own management workflows rather than letting Seller Central become the default operating layer.
- The combined workflow makes Amazon’s fulfillment and seller-tool offerings easier to attach to off-Amazon sales, extending the logic of its Walmart-compatible fulfillment service.
Third-order effects
- If merchants consolidate cross-channel operations in Seller Central, marketplace competition shifts from attracting listings to controlling the software, fulfillment and automation stack behind them.
- Opening that stack to AI agents points toward merchant operations being mediated by platform-approved automations, deepening sellers’ dependence on the platform that coordinates their channels.
The trend: Amazon is evolving from a destination marketplace into operating infrastructure for merchants that sell across multiple retail platforms.