Someone Else Ships Your Orders. Which Pricing Model Puts the Overrun on You?

The decision looks like a procurement exercise and behaves like a customer service one. You are choosing a company to hold your inventory and put it in boxes, but the person who finds out whether the choice was sound is the buyer opening the carton on a porch three states away. That buyer has no contract with the warehouse, no idea it exists, and no interest in the distinction. When something arrives late, short, or crushed, the complaint arrives at your address. So the useful way to read a fulfillment agreement is backward, from the doorstep inward, asking at each step who absorbs the cost when the estimate turns out to be wrong.

Three pricing models, three different places the overrun lands

Most third-party logistics providers quote on one of three bases, and the difference between them is not the headline rate but the location of risk. A per-unit price, sometimes called a fixed pick-and-pack rate, gives you a set charge for receiving, storing and shipping a defined order shape: so many items, one carton, standard packaging. Within that definition, an overrun belongs to the provider. If their pickers are slower than they planned, that is their problem. The catch is in the definition. Every order that falls outside it, a kit, an insert, a fragile item needing extra dunnage, becomes a surcharge, and surcharges are where a fixed price quietly stops being fixed.

An hourly or day rate reverses the arrangement entirely. You are buying labor, and the productivity risk is yours. This model is honest and often cheaper for work that genuinely cannot be estimated, rework on a damaged inbound pallet, a recall sort, a seasonal kitting project where nobody knows how many units per hour is realistic until the second day. It is a poor fit for steady daily order flow, because you have handed the provider no reason to get faster. If you accept an hourly basis, ask for a throughput expectation in writing even when it is not a guarantee, so that a slow week is a conversation and not a surprise.

Cost plus sits between them and is the model most often misread. The provider passes through a documented cost, usually carriage, packaging materials, or pallet storage bought from a landlord, and adds a stated margin or a flat handling fee. Your exposure is to the underlying cost, not to the provider's efficiency. That is entirely reasonable for freight, where rates move and no sane operator will fix them for a year. It is less reasonable for materials, where a percentage markup rewards the provider for choosing the expensive box. The question to ask is simple: which line items are cost plus, what evidence of the underlying cost will I see, and is the plus a percentage or a fixed number.

What the storage side actually promises, and what it caps

Holding goods for someone else is a recognized legal relationship, not a favor, and in most states the terms sit in Article 7 of the Uniform Commercial Code, which governs warehouse receipts and the duties of a warehouse operator. The operator owes reasonable care. It does not owe you the retail value of your inventory. Nearly every standard set of warehouse terms limits liability to a stated amount per pound, per package, or per unit of monthly storage charge, and those caps are usually far below what the stock is worth to you. A pallet of consumer electronics and a pallet of paper towels weigh the same to that clause.

This is a solvable gap rather than a reason to walk away. Read the limitation, calculate what it would pay on your highest-value pallet, and then decide whether to buy up. Providers commonly offer a declared value option at additional cost, and your own cargo or stock throughput policy can cover the difference. Confirm which one is doing the work, because paying twice is common and paying zero is worse. Ask also who insures inventory in transit between your supplier and the warehouse, since that leg often belongs to nobody until someone asks.

The promise your customer relies on is yours, not the warehouse's

Here is the part that surprises people who have outsourced fulfillment for the first time. The shipping representation on your product page, your checkout, and your confirmation email is a representation made by you. The Federal Trade Commission is responsible for the rule governing merchandise ordered by mail, internet or telephone, which sets expectations about shipping within the time you advertised, notifying buyers of delays, and offering the choice of a refund or a revised date. Your provider's operational failure does not transfer that obligation. If the pick line is backed up for four days in November, the buyer is entitled to hear from you, on time, in plain terms.

That reality should shape the service terms you negotiate rather than merely worry you. Ask for a same-day cutoff time you can publish with confidence, an order accuracy standard, and a reporting feed that shows you a delay while it is happening instead of after a customer emails. Ask what credit applies when the standard is missed, and whether it covers the reshipment cost or only the original pick fee. A provider that agrees to tell you early is worth more than one that promises perfection.

Damage, claims, and who is allowed to file

When a parcel arrives broken, three parties could in principle be at fault: the packer, the carrier, or the person who designed a box that was never going to survive a conveyor. Contracts usually assign the claim to whoever bought the transportation. If your provider ships on their carrier account, they hold the claim rights and you hold the unhappy customer, which is a bad split unless the agreement obliges them to file, pursue and credit you. If you ship on your own account, you file, and you need the packing evidence from the warehouse to do it. Photographs at pack time, retained for a stated period, settle most of these disputes quickly.

Set the reshipment policy before you need it. The cheapest resolution for a buyer whose item arrived damaged is a replacement leaving the same day, argued about later, and that only happens if someone has pre-authorized it. Agree a dollar threshold below which the provider simply reships and bills the disputed cost to a holding account. Then reconcile monthly.

Read the pricing schedule and the liability schedule together, because they answer the same question from opposite ends: one tells you what an ordinary week costs, and the other tells you what a bad one does. The provider whose terms make both legible is usually the provider whose operation is legible too.