The short version
- Understand the charges behind your fulfillment bill and compare quotes using your own order mix.
- Use your own order and inventory data when comparing options.
- Agree the details with your provider before work begins.
Why cost per order depends on your operation
A cost-per-order figure only helps when you know what it includes. Product size, order quantities, storage, and shipping destinations can change the total considerably.
- Package size and weight. This sets postage, and postage is usually the single largest line on a parcel-heavy invoice.
- Units and lines per order. A one-unit order and a six-unit order consume very different labor under identical pick rates.
- Storage turn. Inventory that sits 90 days pays three times the storage of inventory that sits 30, against the same revenue.
- How many products you sell and which sell most often. A few bestsellers need a different warehouse setup from a range that sells evenly.
- Channel mix. A B2C parcel order, an Amazon inbound shipment and a retail LTL pallet under a routing guide are three different operations billed three different ways.
- Seasonality. If 40% of your year lands in eight weeks, you are buying peak capacity, and peak capacity is priced.
The anatomy of a 3PL invoice
Break the bill into receiving, storage, order handling, materials, shipping, and additional work. Compare each category with the assumptions in your quote.
Scroll the table sideways to see every column
| Line item | Common unit of measure | What drives the number |
|---|---|---|
| Account or platform fee | Flat per month | Number of integrations, sales channels and reporting seats |
| Receiving | Per hour, per unit, per carton or per pallet | How your freight arrives: palletized, floor loaded, mixed-SKU cartons, label quality |
| Storage | Per pallet, per bin or shelf, per cubic foot, per month | Inventory turn, safety stock policy, height rules, how often it is measured |
| Pick and pack | Base fee per order plus a charge per additional pick | Units and lines per order, and the definition of a pick |
| Packaging materials | Per unit consumed, or bundled into pick and pack | Box size mix, void fill, custom vs stock packaging |
| Carrier and postage | Per shipment, passed through or marked up | Billable weight, zone, service level, carrier surcharges |
| Value-added work | Per unit, per kit or per labor hour | Kitting, inserts, labeling, polybagging, serialization, QA |
| Returns | Per return received and per return processed | Return rate, inspection depth, disposition mix |
| Special projects | Per labor hour | Recounts, rework, relabeling, recalls, channel launches |
| Surcharges | Percentage or flat, by period | Fuel, peak season, minimum shortfalls |
Receiving, where the unit of measure beats the rate
Ask whether receiving is billed by pallet, carton, unit, or hour. Mixed products, floor-loaded containers, and labeling work can change the effort involved.
- Per labor hour. Transparent and honest, but uncapped. You find out what it cost after the work is done.
- Per unit received. Predictable for you, brutal for high-count low-value goods. Twenty thousand sachets and twenty thousand jackets cost the same to receive.
- Per carton. A reasonable middle ground, but it is sensitive to your supplier’s carton pack. Halve the units per carton and you double the bill.
- Per pallet. The cheapest-looking line on most rate sheets, and it only applies if your freight actually arrives on standard, single-SKU, labeled pallets.
Storage, and how per pallet per month gets prorated
Confirm the storage unit and when it is measured. Ask how partial months, oversized pallets, bins, and seasonal stock affect the calculation.
Pick and pack, and the first pick vs additional pick calculation
Check what the order fee includes and how additional units are charged. Use your actual mix of single-item and multi-item orders when comparing quotes.
Materials and postage, the lines that decide the total
Packing materials and postage can be a large part of the bill. Ask which materials are included and how carrier charges appear on your invoice.
Dimensional weight, and why box size beats rate negotiation
Carriers may charge by the space a parcel takes up as well as its weight. Compare package dimensions and the carrier’s applicable rules before assuming a smaller pick fee means a lower total.
Scroll the table sideways to see every column
| Shipped carton (in) | Cubic inches | Dim weight at divisor 139 | Dim weight at divisor 166 | Billable weight |
|---|---|---|---|---|
| 12 x 9 x 4 | 432 | 4 lb | 3 lb | 3–4 lb |
| 12 x 12 x 8 | 1,152 | 9 lb | 7 lb | 7–9 lb |
| 14 x 12 x 10 | 1,680 | 13 lb | 11 lb | 11–13 lb |
| 16 x 14 x 12 | 2,688 | 20 lb | 17 lb | 17–20 lb |
Value-added work, returns and special projects
Kitting, retail preparation, returns, and rework need their own scope. Describe the steps and expected volume so the provider can explain the pricing.
Minimums, ramps, escalators and surcharges
Ask about minimum monthly charges, peak fees, and scheduled rate changes. Include these in the same monthly comparison as your handling and storage costs.
Contract terms that cost money
Review notice periods, setup costs, inventory release fees, and any minimum commitments. Ask for an explanation of terms you don’t understand before agreeing to them.
How to make two quotes comparable
Give each provider the same recent month of orders and stock data. Ask them to show the assumptions and identify work that still needs a separate price.
- 01Pick one complete, recent, representative month. Not December, unless December is specifically the question you are asking.
- 02Export every order: order ID, line count, unit count, ship-to ZIP, service level, actual shipped weight and actual shipped carton dimensions.
- 03Export every inbound receipt: SKU count, unit count, carton count, pallet count, and whether each container arrived floor loaded or palletized.
- 04Export your storage footprint on two dates within the month: pallet positions, bin count, and cubic feet if you have it.
- 05Export returns received, with the disposition each one actually received.
- 06Export the value-added work performed: kits built, inserts applied, units polybagged, units relabeled.
- 07Send that identical file to every vendor, with no rate discussion beforehand.
- 08Require the deliverable as a simulated invoice for that month, line by line, in the same line-item order from every vendor. Not a rate card. Not a range.
- 09Ask each vendor to restate their pricing in the other vendors’ units of measure. A vendor that cannot price both per line and per unit does not understand its own cost structure well enough to hold a rate.
- 10Compare the totals, then compare the three largest lines. That is where a negotiation is actually available.
- What is the unit of measure for receiving, and what is the surcharge for a floor-loaded container?
- Is the receiving time a contractual commitment or a target? When does the clock start and stop?
- What counts as one pallet position: maximum height, overhang rule, and are racked, floor and bulk priced the same?
- How is storage measured: month-end snapshot, first-of-month snapshot, daily average, or peak in period?
- Do partial pallets and partial bins round up to a full unit?
- Is a pick a unit, an order line, or a location touch?
- How many picks are included in the base order fee?
- Are single-line single-unit orders priced separately?
- What packaging is included in pick and pack, and what is the per-unit price of everything that is not?
- May I supply my own packaging, and is it stored free or billed as pallet storage?
- Do I see the underlying carrier invoice, or only your restatement of it?
- Are carrier incentives, rebates and earned discounts shared or retained?
- How are carrier adjustments, dimensional reweighs and address corrections billed back to me?
- Does your warehouse software choose a box for each order, or use a fixed box for each product?
- What is the price of each return disposition, and where is the line between receiving a return and processing it?
- What is the hourly project rate, and what notice do you need to schedule project labor?
- Who pays for the reship, the product and the freight when the error is yours?
- What is the shrink allowance as a percentage of units handled?
- What is the monthly minimum, what counts toward it, and when does the onboarding ramp end?
- What is the annual escalator, is it capped, and does it compound?
- What exactly does a rate lock exclude?
- What is the notice period, how must notice be delivered, and when does the window open?
- What does offboarding cost at today’s rates for my current pallet count?
- Is there a lien on my inventory for disputed amounts, and what is the liability cap for loss or damage?