Amazon FBM (Fulfilled by Merchant) is a fulfillment method on Amazon where the seller is responsible for storing, packing, and shipping their own products, unlike Fulfilled by Amazon (FBA), where Amazon handles the logistics. FBM allows sellers more control over their inventory and fulfillment process, often at a lower cost, but it also requires more time and effort. Sellers who choose FBM must handle customer service and returns themselves, which can add complexity to the business. FBM is often preferred by smaller sellers or those selling unique or customized items that don’t fit Amazon’s FBA criteria.