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Amazon's third-party logistics arm is opening up its vast delivery network to more online sellers, with plans to fulfill online orders for Walmart Marketplace, Shopify and Shein's U.S. Marketplace.

Merchants can now use Amazon’s logistics network to pick, pack, and ship their Walmart orders, with new capabilities now added for Shopify as well as SHEIN by year-end By using Amazon Multi-Channel ...

Online merchants say Amazon's Buy with Prime service has shown mixed results so far. Buy with Prime is aimed at extending Prime benefits beyond Amazon's own marketplace. An internal Amazon email cited ...