CP (Cost Price)

Amazon & D2C glossary · Harpy Media

CP (Cost Price) is the wholesale price at which a 1P vendor sells goods to Amazon Retail — the base number Amazon pays before the Contra COGS stack does its subtracting. For 3P sellers, the same term describes their purchase cost from manufacturers or distributors: what the inventory costs before it becomes a listing.

What is CP?

CP (Cost Price) is the wholesale price at which a 1P vendor sells goods to Amazon Retail — the base number Amazon pays before the Contra COGS stack does its subtracting. For 3P sellers, the same term describes their purchase cost from manufacturers or distributors: what the inventory costs before it becomes a listing.

In both worlds, CP is the anchor of every downstream calculation: margins, deal depth, reimbursement math, negotiation ranges. And in both worlds, the naive version (invoice price) and the honest version (landed, or net-of-allowances) differ enough to sink decisions made on the wrong one.

1P: CP as the negotiation anchor

Amazon’s profitability math on your products starts from CP: their margin is retail price minus CP (minus their costs), and their decisions — pricing aggression, PO depth, promo appetite — follow it. That makes CP the primary lever of vendor negotiations: raise CP and Amazon’s margin compresses (they may resist promos or push retail price up); hold CP and concede allowances, and the headline looks friendly while net realized price moves differently. Vendors who negotiate without modeling both levers get outmaneuvered by their own arithmetic.

3P: CP as the floor of everything

For sellers, CP (landed cost) defines the floor under pricing, the denominator of margin, and the cash-out in every reorder. The disciplines it feeds: minimum viable price (CP + fees + target contribution), deal depth limits, and reimbursement claims (FBA lost-damage reimbursements reference cost — understated CP means systematically under-claimed recoveries). Two sellers with identical revenue and different CP accuracy have different businesses; one of them just doesn’t know it yet.

In practice

A vendor models a CP increase against an alternatives package: +4% on CP versus holding CP with a trimmed allowance stack. The model shows Amazon’s margin math tolerates the allowance trim far better than the headline increase — and the net realized price ends up 1.5 points higher. The negotiation takes the package the model recommended; the spec sheet tells a different story than the P&L, and the P&L wins.

How Harpy Media helps

Cost architecture — landed, net-realized, and floor-priced — is the first sheet we build for both seller and vendor clients.

CP FAQ

What does CP mean on Amazon?

Cost Price — for 1P vendors, the wholesale price Amazon pays; for 3P sellers, their purchase cost of inventory.

Is CP the same as COGS?

Close cousins: vendor CP is the invoice anchor; COGS is typically the landed cost including freight and duties. Use landed for decisions.

Why does CP matter in vendor negotiations?

Because Amazon’s margin, PO depth, and pricing behavior all compute from CP — it’s the anchor every other term moves around.