Real Counts vs Said-to-Contain: How Your Cartons Get Received

By Bernardo Campelo, Forbes Business Council E-Commerce Leader and Founder of PrepVia, an Amazon SPN Certified prep center.

The packing list says 2,400 units. The warehouse report says 2,400 units received. Three weeks later, a carton marked 48 gets opened to fill an order, and it holds 42 pieces.

Nobody lied on that report. The warehouse counted 50 cartons against a bill of lading that listed 50 cartons, signed the receiving log, and moved the pallet into storage. That is called receiving said to contain, and it is how most freight in this country gets checked in. Counting every unit inside every carton is a different discipline entirely, and almost nobody does it by default because it is slow and it costs money.

The confusion between these two methods is why so many buyers discover a shortage weeks after the truck already left the dock, past the point where anyone can prove who is responsible. The fix is not to demand a full count on every shipment. The fix is to know which method you are actually paying for, and to build the evidence trail that settles the argument before it starts.

What Said to Contain Means When Your Container Arrives

Said to contain, often shortened to STC in freight and 3PL forums, describes the default receiving method at nearly every warehouse in the country. A crew unloads a container or a truck, counts the cartons and pallets against the bill of lading or the packing list, and signs for that count. The number inside each carton is taken on faith, based on what the label says or what the supplier declared on the shipping documents.

A container of 1,200 cartons takes a crew a few hours to unload and count by carton. Opening every carton and counting every unit inside would take that same crew about a full week: at an illustrative 10 minutes per carton, 1,200 cartons is 200 labor hours, or 50 hours each for a crew of four, and most receiving docks cannot absorb that labor cost on freight that already needs to move. Said to contain exists because freight has to move, and someone downstream has to accept a number before the truck can leave.

Real count is the other end of the spectrum. Someone opens the carton, counts the units by hand or with a scale and average unit weight, and records what is actually inside against what the label claims. It answers a different question than STC. STC answers whether the shipment matches the paperwork at the carton level. Real count answers whether the paperwork was accurate at all. For a buyer who never watches a container get unloaded, knowing which question your 3PL or prep center is actually answering changes how much you can trust the report you get.

Carton Count vs Unit Count: The Gap Nobody Sees

The gap between these two methods hides inside a single assumption: that a sealed carton contains what its label says. Most of the time it does. Packing errors happen, though, and they happen more often than importers expect, especially with new suppliers, seasonal rush orders, and factories running overtime before a shipping deadline.

A packing error inside a sealed carton is invisible to said-to-contain receiving by design. The warehouse counted the carton correctly. The carton itself was wrong before it ever left the factory floor. Nobody at the origin warehouse, the freight forwarder, or the receiving dock opened it to check, because opening it was never part of the agreed method. The shortage only surfaces when someone downstream, usually you, opens the carton to fulfill an order.

Said to contain is the correct method for freight you trust, from a supplier with a track record, on product where a small unit discrepancy does not change your fulfillment math. The risk is not knowing that you chose it, and assuming a receiving report means something it never claimed to mean.

Who Pays for a Real Count, and When It Is Worth It

A real count is a labor line item, and someone has to pay for it. In most 3PL and prep center agreements, that cost falls on whoever requests the count above the standard receiving method. If you want every carton opened and every unit counted, expect to pay for the additional hours, sometimes per carton, sometimes as a flat surcharge on the shipment.

That cost is easy to justify in some situations and hard to justify in others. A single pallet of a new SKU from a supplier you have never used before is worth the added labor. A container of a product you have ordered forty times from the same factory, with a clean history, usually is not. Paying for a full count on every shipment regardless of risk is how importers burn margin on a problem that rarely occurs.

The better approach is a trigger rule: a written condition that upgrades a shipment from said to contain to a sample or full real count automatically, agreed with your warehouse or 3PL before the freight arrives, not negotiated after a shortage is already suspected.

A weight check belongs in every method, including said to contain, because it costs almost nothing and catches the largest errors. A carton that should weigh 22 pounds and weighs 17 pounds on the dock scale is a strong signal before anyone opens a single box.

The Discrepancy Triangle: You, Your Supplier, and Your Warehouse

When a count comes up short, three parties sit around the same number and each one has a reason to believe someone else is responsible. You believe the warehouse miscounted or misplaced stock. The warehouse believes the carton arrived exactly as packed and points to its signed receiving log. The supplier believes the count is wrong somewhere downstream, because their own factory count matched what shipped.

All three positions can be argued in good faith, and that is exactly the problem. Without documented evidence tied to the moment of receiving, a shortage becomes a dispute about whose word carries more weight, not a question that evidence can settle. Whoever has the weakest paper trail usually absorbs the cost, regardless of who actually made the error.

This triangle is why the receiving method matters so much more than most buyers realize before their first real shortage. Said-to-contain receiving generates almost no evidence beyond a signature on a carton count. It cannot tell you whether the supplier packed correctly, and it cannot defend the warehouse against a claim that stock went missing after arrival. The only way out of the triangle is evidence collected before the dispute exists, not evidence reconstructed after.

The Evidence That Actually Settles a Claim

Four things, gathered at the moment of receiving, resolve almost every discrepancy dispute. None of them are complicated. All of them have to happen before the pallet leaves the dock, because evidence collected after the fact convinces nobody.

Put together, these four steps convert a shortage from an argument into a documented fact. The warehouse can show what it received and when. You can show what arrived against what was declared. The supplier can see the exact carton numbers in question instead of a vague complaint about a shipment from six weeks ago.

What Careful Receiving Looks Like Inside a Prep Center

At PrepVia, our 5,500 sq ft warehouse in Miami has 3 dock doors and receives containers floor-loaded or palletized. Container unloading is quoted per account on a free 15-minute call, with floor-loaded containers quoted by carton count. The PrepVia app shows expected against received units for each product, and a warehouse receipt in PDF once the shipment closes. Our standard prep window is 24-36 hours.

The discipline is simple to state: count what actually needs counting, document it the moment it happens, and never let a shipment sit in ambiguity about what arrived. For importers who never see their own container get unloaded, that documentation is the only window into what happened at the dock, regardless of which 3PL or prep center you use.

This matters most for freight that never touches Amazon at all. A container landing for wholesale distribution or retail fulfillment does not have an Inventory Ledger to fall back on the way an FBA shipment does. There is no Amazon reconciliation tab waiting to sort out the difference later. The receiving report from your 3PL is the only record that exists, which is exactly why it has to be built correctly the first time.

Building the Count Method Into Your Purchase Order and Your Warehouse Agreement

Every clause below belongs in writing before a container ships, not after a shortage forces the conversation. A verbal understanding about how receiving works is not a receiving standard, it is a guess that both sides will remember differently once money is involved.

A written prep center agreement is the natural place for most of this, and it belongs next to your standard customs paperwork. If you are also managing import documentation for the same container, keep the receiving standard in the same file, because a customs dispute and a receiving dispute often trace back to the same shipment.

If your business runs a mixed flow (some inventory going to Amazon, some going to wholesale accounts or your own fulfillment), keep the two receiving standards separate in your head. The mechanics that govern a shortage inside an FBA shipment are entirely different from the mechanics at your own receiving dock. One is a declared quantity Amazon never adjusts on its own. The other is a physical count your 3PL either did or did not perform. Confusing the two wastes time chasing the wrong process for the wrong problem.

And if you are choosing a 3PL or prep center for the first time, ask directly which method they use by default, and whether they will apply a trigger rule at all. Some of the warning signs of a weak prep center show up exactly here: a warehouse that cannot describe its own receiving method probably does not have one, and neither will you once a shortage shows up.

Frequently Asked Questions

What does said to contain mean in warehouse receiving?

Said to contain means the warehouse verifies the carton and pallet count against the packing list or bill of lading and accepts the declared quantity inside each carton without opening it. It confirms that the correct number of cartons arrived. It does not confirm that the correct number of units is actually inside those cartons. It is the default receiving method at most warehouses because opening and counting every unit takes far more labor and dock time than a carton count.

How is a real count different from said-to-contain receiving?

A real count means a warehouse worker physically opens cartons and counts the units inside, against the quantity the supplier declared. Said to contain never opens the carton at all. A real count answers whether the paperwork was accurate. Said to contain only answers whether the number of cartons matches the shipping documents. Most warehouses run a sample or full real count only when a trigger rule calls for it, because it adds labor cost to every carton that gets opened.

Who pays for a real unit count at receiving?

In most 3PL and warehouse agreements, the added labor for a real count falls on whoever requests it above the standard receiving method already built into the rate. If a trigger rule you wrote in advance calls for the count because of a supplier history or a weight mismatch, some agreements shift that cost to the supplier instead. The cleanest approach is to define who pays for each trigger condition in writing before the shipment arrives, so the cost is never negotiated after a discrepancy is already suspected.

How many days do I have to report a receiving discrepancy?

The claim window should be written into both your supplier agreement and your warehouse agreement before the shipment arrives, and the two windows should match. Once that window closes, most suppliers and most 3PLs will decline to investigate, because the evidence has already degraded and the product has likely moved through storage or partial fulfillment. A discrepancy reported inside a defined window, backed by a signed report from the day of receiving, is far more likely to result in a resolution.

What evidence do I need to win a discrepancy dispute with my supplier?

Four things settle nearly every dispute: a timestamped dock photo taken before the seal is broken, a sample or full count recorded against your written trigger rule, a signed discrepancy report written the same day as receiving, and a claim submitted inside the agreed window. Evidence gathered weeks after the fact, once product has already moved through the warehouse, rarely settles anything, because none of the three parties involved can prove what happened at the actual moment of receiving.

Does every shipment need a full unit count?

No. A full unit count on every shipment regardless of risk is how importers spend margin on a problem that rarely occurs with an established supplier. A written trigger rule is the more efficient approach: escalate to a sample or full count for a new supplier, a high-value SKU, a supplier with a prior discrepancy, or a carton that fails the dock weight check, and rely on said-to-contain receiving, with periodic spot sampling, for freight with a clean history.

What happens if my warehouse and my supplier disagree on the count?

Without documented evidence tied to the moment of receiving, the disagreement usually becomes a question of whose word carries more weight rather than a question the facts can settle, and whoever has the weakest paper trail tends to absorb the cost. A dock photo, a sample count against a written trigger rule, and a discrepancy report signed the day of receiving remove the guesswork, because all three parties can look at the same documented evidence instead of arguing from memory.

Final Take

Said to contain is the system working exactly as designed, built for freight that has to move fast and a supplier relationship that has earned trust. The mistake buyers make is not knowing that said-to-contain receiving is what they chose, and expecting a carton count to answer a question it was never built to answer.

A real count has a real cost, and paying it on every shipment regardless of risk is its own kind of waste. The importers who avoid shortages are not the ones who count every unit on every container. They are the ones who wrote a trigger rule before the freight arrived, who photograph the dock, who count a sample against a standard instead of a hunch, and who put a claim window in writing so a discrepancy has a deadline instead of an endless argument.

The discrepancy triangle (you, your supplier, and your warehouse) only turns into a real dispute when nobody collected evidence before the disagreement started. Fix that one habit and most shortages stop being mysteries. They become line items with a date, a carton number, and a resolution attached.