Harpy Glossary

DF (Direct Fulfilment)

Amazon & D2C glossary · Harpy Media

DF (Direct Fulfilment) is Amazon’s vendor dropship model: Amazon lists and sells the products, but the vendor stores the inventory and ships each order directly to the customer from its own warehouse. Amazon passes orders in real time (EDI/API integration required), provides the shipping label, and holds the customer relationship.

What is DF?

DF (Direct Fulfilment) is Amazon’s vendor dropship model: Amazon lists and sells the products, but the vendor stores the inventory and ships each order directly to the customer from its own warehouse. Amazon passes orders in real time (EDI/API integration required), provides the shipping label, and holds the customer relationship.

It’s a way to sell on Amazon without selling TO Amazon — no bulk inventory sent to FCs, no PO wait, wider selection live immediately. The trade: every order becomes an operational promise, and DF vendors are scored on shipping speed, cancellations, and compliance like any dropshipper — because that’s exactly what they are.

Why vendors use DF (and what it demands)

The upside set: test demand without inventory investment (quote a few units, watch real orders come), extend selection endlessly (list the whole catalog without stocking FCs), and serve items Amazon doesn’t want to buy outright. The demand side is real: DF orders require same-day or next-day shipment per program terms, accurate tracking, and near-zero cancellations — and vendors are scored on DF-specific metrics. WMS integration matters more than anything: orders must flow into the warehouse automatically, pick-pack must be DF-grade (discrete, well-packed, correctly labelled), and the ship-confirmation must return on time. Manual DF operations fail the moment volume exceeds the person doing the copying and pasting.

The economics worth running before you scale DF

DF unit economics differ from FC selling: no FC fulfilment fees, but you eat the warehouse pick-pack cost, the labour per order is far higher than pallet-scale shipping, and shipping-cost variance lands on the customer experience (slow cheap carrier = late shipment metrics). Run the comparison per SKU: DF margin versus the same item sold through FC (with its fee stack) — for slow movers and long-tail, DF often wins (no inventory parked); for hero SKUs, FC wins on cost-per- order at scale. Most mature vendors run a hybrid floor: DF for selection breadth, FC for velocity engines.

DF unit margin = list price − vendor cost − pick-pack labour − packaging − shipping variance (label is Amazon’s) − DF-related feesThen compare against the same SKU’s FC economics — hybrid catalogs beat purity in both directions.

In practice

A vendor opens a DF channel for 60 slow-moving SKUs: zero inventory investment, real orders within the month for 41 of them. The data decides what happens next: nine SKUs show genuine demand and transition to bulk FC stocking (better unit economics at scale), 14 keep selling via DF as profitable long-tail, and the dead rest inform the next line review. Amazon paid for the market research in orders.

⚠️ Watch out. A vendor launches DF with a manual process — emails, spreadsheets, one overloaded operator — and the first volume spike produces late shipments, cancellations, and scorecard damage. DF scales with integration or it doesn’t scale; the metrics don’t accept “we were busy” as a response code.
💡 Harpy tip. Before enabling DF at scale, run a five-order pilot through your full pipeline and time it: order ingestion, pick, pack, label, confirm. If the pilot can’t hit the shipping window comfortably, the scale version won’t either.

How Harpy Media helps

We treat DF as an integration project with metrics attached — a selection-expansion engine, not a side channel held together by inbox discipline.

DF FAQ

What is Direct Fulfilment?

Amazon’s vendor dropship model — Amazon sells, the vendor ships each order direct to the customer, with orders flowing via EDI/API.

How is DF different from FBA?

FBA ships from Amazon’s FCs; DF ships from YOUR warehouse per order — no bulk inventory at Amazon, different economics, and vendor-side operational scoring.

When should I use DF instead of FC stock?

For testing demand and selling long-tail or slow movers without inventory investment — heroes usually stay in FC where cost-per-order wins at volume.

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