Amazon Fulfillment Services at Vertex is the umbrella for every way to fulfill an Amazon order that is not pure SFP and not pure FBA Prep. The bulk of the volume is FBM (Fulfilled By Merchant), Amazon's name for seller-fulfilled orders that do not carry the Prime badge. FBM orders ship from your warehouse (or ours) on your handling time and your carrier accounts, and Amazon hands the order to you through Seller Central via the SP-API.
The hub also covers AWD (Amazon Warehousing & Distribution), Amazon's upstream bulk storage program that prices below FBA long-term storage and auto-replenishes inventory into FBA nodes as your forward stock burns down. We coordinate AWD shipments at no separate fee on top of standard FBA prep. We also handle Amazon Multi-Channel Fulfillment (MCF) coordination when MCF is the right tool, and we handle hybrid setups where the same SKU ships through different programs based on customer location and Prime eligibility.
Why brands choose Vertex over Amazon's own FBA for non-FBA Amazon orders is the question this page answers. The short answer: FBA pick-and-pack fees plus FBA storage fees plus FBA referral fees plus FBA long-term storage escalators stack into a fee structure that crushes margins on certain SKU profiles. Heavy units, oversize items, hazmat, slow-moving stock, and items needing custom packaging or B2B pallet builds all price better through Vertex than through FBA. We model the breakeven for your specific catalog and tell you which SKUs belong in FBA and which belong in our warehouse.