Costco quietly shuts down Costco Next marketplace without explanation

Costco has quietly shut down its Costco Next online marketplace, a members-only perk that routed shoppers to discounted products sold directly by vetted third-party vendors. The marketplace page now tells customers that Costco Next storefront access is no longer available and directs shoppers to contact individual vendors for eligible returns, warranty questions, or other support needs. Reports from early September say the change appeared to happen without prior notice, leaving some members to scramble over pending purchases and claims. Costco Next had expanded over time from a smaller launch into a broader roster of outside brands, with some outlets noting growth toward nearly 100 vendors by 2024–2025. Costco has not publicly explained why it ended the service, though reporting suggests it may not be tied to weakening performance. Separate coverage highlights that Costco continued to post strong sales and digital growth around the same period, while the retailer has yet to respond to inquiries about the shutdown.