Multi-Channel Fulfillment (MCF) is Amazon's service for delivering orders that were placed somewhere other than Amazon. A merchant keeps goods in Amazon's warehouses, and when a sale arrives from its own website, Walmart Marketplace, TikTok Shop or any other storefront, Amazon picks, packs and ships the parcel from the same stock that serves Amazon.com. The service exists because brands rarely sell in one place, and a separate inventory pool for every channel ties up cash and multiplies stock-outs. Generically, multi-channel fulfilment means any provider serving several channels from one inventory pool; in advertising circles the phrase usually means Amazon's product, which runs in 11 countries and which Amazon's newer pages spell Multichannel Fulfillment.

How an order moves

Inventory comes first. Goods enter Amazon's network through the same inbound process as Fulfillment by Amazon(FBA), and a unit sitting in a fulfilment centre can be sold on Amazon or dispatched for an outside order without being moved. Businesses with no Amazon selling account can register for MCF alone, a point Amazon's German-language MCF site made explicit in March 2026.

The order then has to reach Amazon. Small sellers key it into Seller Central; most route it through a connector: Amazon's own app for Shopify, or intermediaries such as Pipe17, Rithum, WebBee and CedCommerce that pull orders from other marketplaces. Underneath sits the Fulfillment Outbound API, part of Amazon's Selling Partner API (SP-API). Its createFulfillmentOrder operation carries a destination address, seller SKUs and quantities, a shipping speed category (Standard, Expedited, Priority or ScheduledDelivery) and optional feature constraints. Two constraints exist mainly to satisfy other channels' rules. BLANK_BOX requests packaging without Amazon branding. BLOCK_AMZL keeps the parcel away from Amazon Logistics and its tracking numbers, which, according to Amazon's developer documentation, adds a surcharge and raises the risk of late or unfulfilled orders when no other carrier is available.

Amazon ships in unbranded packaging by default and the connector writes the tracking number back to the originating channel. Standard delivery is promised in three business days and Expedited in two, measured from click to doorstep, as of September 2026. A getDeliveryOffers operation returns those estimates for a US ZIP code or IP address for display before checkout. Customer service stays with the merchant; returns processing starts at $3.22 a unit.

What it costs

MCF is priced per unit on four variables: size tier, shipping weight, delivery speed and the number of units in the order. On Amazon's US rate card dated June 1, 2026, a small standard item of 4 ounces or less costs $7.34 to ship alone at Standard speed, $4.98 per unit in a two-unit order and $3.64 per unit in an order of four or more. Expedited, the single item costs $10.70. Fees rose by an average of $0.30 per unit for 2026, with orders of three or more standard-size units left unchanged, and a 3.5% fuel and logistics surcharge has applied since May 2, 2026, 15 days after the same charge reached FBA. Storage is billed at FBA rates: $0.78 per cubic foot a month for standard-size goods from January to September, and $2.40 from October to December.

The premium over on-Amazon fulfilment is as old as the service. In 2008 a sub-pound book or CD priced under $25 cost 90 cents to fulfil for an Amazon.com order and $2.95 when sold on a third-party site, according to InformationWeek. Incentives narrow the gap. MCF 2026 Preferred Pricing, launched on January 15, offers up to 15% off outbound fees and up to $1 of FBA credit per MCF unit, with credits on its six-month track capped at 50,000 units.

Origin and evolution

FBA launched on September 19, 2006. Amazon dates MCF to 2007, and in March 2008 it opened the machinery to developers as the Amazon Fulfillment Web Service, with inbound functions to announce shipments and outbound functions to trigger deliveries. "Merchants can store their own products to our fulfillment centers and then, using a simple Web service interface, fulfill orders for the products," Jeff Barr, an Amazon Web Services evangelist, wrote at the time, according to InformationWeek.

For years MCF was a side door for FBA sellers. Three shifts changed that. Buy with Prime, announced on April 21, 2022, required participating merchants to use MCF so that one pool of stock could serve Amazon and their own sites. Scale followed: at its Accelerate conference on September 18, 2024, Amazon said MCF served more than 200,000 US merchants, with orders up 70% year on year, and cut the Standard promise from five business days to three. Then rival channels opened. Walmart changed its shipping policy on May 16, 2025 to allow MCF for its marketplace orders, provided parcels travel in neutral packaging on unbranded vehicles, which in practice means blocking Amazon Logistics. Sellers had earlier reported suspensions for exactly that practice. Amazon added direct support for Walmart, Shopify and SHEIN on September 18, 2025.

The latest step came on May 4, 2026, when Amazon Supply Chain Services (ASCS) opened freight, storage, fulfilment and parcel delivery to any business. MCF now sits inside ASCS as its third-party logistics (3PL) product.

Why it matters for marketers

MCF is logistics, but its output surfaces in advertising. Google added an "Amazon MCF" shipping policy to Merchant Center in October 2024 that fills in delivery estimates automatically, citing its own June 2024 data showing 1.5% to 7.6% more clicks and 1.9% to 7.2% more conversions on US Shopping ads for merchants offering free delivery in three days or less. TikTok's ad platform added Buy with Prime checkout in August 2025. Amazon's "fast badges" put the same estimates on merchants' product pages. "We saw a 55.9% increase in conversion rate," Andrew Curtis, chief digital officer of headphone maker JLab, said in a case study Amazon published.

Inventory is the second link: a TikTok campaign draws down the units that keep an Amazon listing in stock. Amazon says US sellers using both MCF and FBA cut out-of-stock rates by an average of 19% and improved inventory turnover by 12%; neither figure has been independently verified.

Fees are the third. Each rate change flows into return on ad spend (ROAS) for off-Amazon campaigns, and 2026 brought several: the surcharge, the April extension of Ships in Product Packaging to MCF orders, which dropped packing slips by default and paid discounts of $0.04 to $1.32 a unit, and holiday peak fees from October 15 to January 14 that average $0.32 a unit above normal rates.

Limitations and disputes

Single-unit orders are costly. For a one-pound Walmart order, fulfilment providers' analysis put MCF at about $8.50 against $3.45 through Walmart's own service, figures from an integration vendor rather than either retailer.

Branding goes too. MCF parcels ship in unbranded packaging by design, which removes the seller's marks along with Amazon's. A brand that treats the box as a marketing surface gives that surface up.

Channel rules move. TikTok Shop told US sellers in January 2026 that independent Seller Shipping would end, and for weeks it was unclear whether MCF would qualify. The record of what followed conflicts: PPC Land coverage dates the end of seller shipping to February 25, while several fulfilment providers reported being told on February 17 that the deadlines would not take effect.

Data and dependence are the deeper objections. Routing a Walmart or Shopify order through MCF gives Amazon the buyer's address and basket from a competing channel. Amazon says the Seller Central tools it launched in September keep off-Amazon data from informing its retail business decisions; that is a company commitment, not an audited finding. The Prime badge that MCF now carries onto merchants' sites is available only when Amazon fulfils the order, the kind of link between Prime and Amazon logistics that the Federal Trade Commission (FTC) challenged in its September 2023 lawsuit over FBA.

Not the same as

Fulfillment by Amazon. FBA fulfils orders placed on Amazon's own marketplaces, as Explaining Fulfillment by Amazonsets out. MCF uses the same warehouses and stock for orders placed elsewhere, at different rates and in unbranded boxes.

Buy with Prime and Prime delivery. Both run on MCF. Buy with Prime adds an Amazon checkout, with Amazon handling returns and customer service. Prime delivery, launched in September 2026, is a shipping option inside the merchant's own checkout. A merchant can use one or the other, not both, according to Amazon.

Rival multichannel programmes. Walmart Multichannel Solutions, launched on September 10, 2024, runs the same model from Walmart Fulfillment Services and accepts orders from Amazon, eBay, SHEIN and Temu, according to Walmart. Independent providers, surveyed in Explaining 3PL, sell multi-channel fulfilment with no marketplace owner in the middle.

Recent developments

Amazon has spent 2026 pricing MCF to win other channels' orders. In July it offered 35% off Standard and Expedited MCF fees on TikTok Shop orders for 12 months, according to its pricing page, and on August 6 TikTok Shop listed nine apps that connect MCF to its orders. The largest change came on September 24. US merchants using MCF can now display a Prime badge and offer Prime delivery at their own checkout for no fee beyond standard MCF rates; Amazon verifies membership after the order using details such as email and shipping address. The same day it announced a new MCF Preferred Pricing Program, which it says saves 15% to 25% for six months, and tools that let sellers fulfil Shopify, Walmart, eBay and TikTok orders from Seller Central. A waiver of the 5% Amazon Logistics block surcharge, which covers Walmart orders, runs until January 14, 2027.

Timeline

  • September 19, 2006: Amazon launches Fulfillment by Amazon
  • 2007: Amazon dates the launch of Multi-Channel Fulfillment to this year
  • March 20, 2008: Amazon introduces the Fulfillment Web Service, exposing inbound and outbound fulfilment through APIs
  • April 21, 2022: Amazon announces Buy with Prime, built on MCF and Amazon Pay
  • September 10, 2024: Walmart Multichannel Solutions opens Walmart Fulfillment Services to orders from other channels
  • September 18, 2024: Amazon reports more than 200,000 US MCF merchants and cuts Standard delivery from five business days to three
  • October 2024: Google adds an Amazon MCF shipping policy to Merchant Center
  • May 16, 2025: Walmart permits MCF for marketplace orders under neutral packaging and carrier conditions
  • September 18, 2025: Amazon adds MCF support for Walmart, Shopify and SHEIN
  • January 15, 2026: MCF 2026 Preferred Pricing opens
  • January 26, 2026: TikTok Shop tells US sellers that independent Seller Shipping will end
  • March 2026: Amazon launches a German-language MCF site
  • April 2026: Ships in Product Packaging extends to MCF and Buy with Prime orders in the US
  • May 2, 2026: A 3.5% fuel and logistics surcharge begins to apply to MCF fees
  • May 4, 2026: Amazon Supply Chain Services launches, with MCF inside it
  • June 1, 2026: Date of Amazon's current US MCF rate card
  • July 2026: Amazon offers 35% off MCF fees on TikTok Shop orders for 12 months
  • August 6, 2026: TikTok Shop lists nine MCF integration apps
  • September 24, 2026: Amazon launches Prime delivery for MCF merchants' own sites, a new MCF Preferred Pricing Program and multichannel selling tools in Seller Central
  • October 15, 2026: Holiday peak fulfilment fees begin
  • January 14, 2027: Holiday peak fees and the Amazon Logistics block surcharge waiver end

Summary

Who. Amazon operates Multi-Channel Fulfillment through Amazon Supply Chain Services. Brands and resellers selling on their own websites, Walmart, Shopify, TikTok Shop, eBay and SHEIN use it, usually through connectors such as Pipe17, Rithum and WebBee. Walmart, Google and TikTok set the rules and ad formats that shape how MCF orders are shipped and promoted.

What. A per-unit, pay-as-used service in which Amazon picks, packs and ships orders placed outside Amazon, drawing on the same inventory as FBA, in unbranded packaging by default and at Standard, Expedited or Priority speeds.

When. Amazon dates MCF to 2007 and exposed it through APIs in 2008. Buy with Prime built on it from 2022, rival marketplaces accepted it from 2025, and in 2026 it gained a fuel surcharge, new discount programmes and a Prime delivery option for merchants' own sites.

Where. Amazon's fulfilment networks in 11 countries, with the most detailed rules and pricing published for the United States and a German-language site serving the European Union.

Why. One inventory pool reduces stock-outs and duplicate warehousing for brands selling in many places, and fast delivery promises lift ad performance. Single-unit costs, lost packaging control, shifting channel rules and Amazon's growing view of competitors' orders remain the points of contention.