Amazon is introducing tools to let independent sellers manage their sales on four of its biggest rivals — eBay, Shopify, TikTok and, yes, even Walmart — from Seller Central, the same dashboard they use to run their Amazon businesses.
The multichannel selling tools, announced Thursday at Amazon’s Accelerate seller conference in Seattle, are rolling out gradually to U.S. sellers over the coming months at no extra cost. At first, sellers can connect their accounts on the other platforms, import and link listings, see all their orders in one place, and fulfill orders across channels.
The data question: The move raises natural questions about Amazon’s motives, including what the company might do with data from sellers’ businesses on rival platforms. In an…



