Amazon plans to discontinue its inventory commingling service entirely by March 31, 2026. This program allowed third-party sellers to pool their stock with Amazon's own fulfillment inventory. The change forces sellers to manage their own stock or use Amazon's standard fulfillment network. This marks a major shift in the company's logistics strategy.

Commingling helped smaller sellers by leveraging Amazon's vast distribution network. However, it also created challenges with quality control and counterfeit prevention. By ending the program, Amazon is likely tightening its grip on inventory authenticity. Sellers will need to adjust their supply chain management before the 2026 deadline.

The move aligns with Amazon's broader push for greater oversight. It may lead to increased costs for some third-party sellers who relied on the service. Industry watchers will track how this affects seller profitability and Amazon's overall marketplace dynamics. The 18-month transition period gives businesses time to adapt.