Work backwards from the retail price. Set the price you’ll sell at and the margin you need, and the target landed cost is what’s left. Landed cost counts everything it takes to sell and deliver one unit: unit cost, packaging, freight, duties, 3PL fees, an allowance for returns, and Shopify and payment fees. Brands that start from a factory quote and add a markup discover their real margin after launch.
Specs and samples come next. Write the specification before requesting samples, and expect more than one round before sign-off.
Weigh minimum order quantities against cash. A lower unit price at a higher minimum only saves money if the stock sells through before that cash is needed elsewhere. A good product development consultant models a few order sizes against your sales rate instead of chasing the lowest unit cost.
Inspect before it ships. A pre-shipment check against the written spec costs far less than finding a fault once the stock is in your warehouse and orders are live.
Know which specialist you’ve hired, and how they’re paid. A product development consultant shapes the product: spec, materials, costings and the sampling plan. A sourcing agent works the supply side: finding and vetting factories, negotiating, following production and arranging inspections.
Agents are paid by commission on orders, by a fixed fee, or through a margin built into the unit price they quote. The third model hides the factory’s real price, so you can’t compare it with other quotes or see what the agent’s work costs you. Ask which model applies before comparing any quotes.