Updated October 2026
With most stock, it's enough to know how many units you hold. With a unique, high-value piece, you also need to know which exact one it is and what shape it was in.
Serialized item-level inventory gives each unit a record of its own. Condition documentation notes the state a specific unit was in, so the piece a customer receives can be matched to the piece that was put away. On every order, we scan barcodes by SKU at pick and again at pack. Some unique, high-value pieces call for serialized handling or photographed condition records on top of that.
By The Fulfillment.com team
Most stock is interchangeable. One unit of a SKU is the same as the next, so all you need to know is how many you have and that the right SKU and variant goes out.
At the top of a collectibles catalog, that stops being true. A one-of-one card, a signed single jersey or a particular graded slab can't be swapped for anything else. Two pieces that look almost alike can also differ in condition, which is often what sets their price. For pieces like these, you want a record of which exact unit it is and the state it was in. Serialized inventory and condition records keep that.
Tracking single pieces builds on accuracy by SKU and doesn't replace it. The scan on every order comes first. The extra records for unique pieces sit on top of it.
Accuracy starts at the SKU. When stock arrives, we receive it, count it and scan every unit into our records. When an order goes out, we scan it at pick and again at pack and check it against those records. Where every unit of a SKU is the same, this check does the work, and we run it on every order today.
A SKU is too broad a record for a piece with no twin. Serialized tracking gives each unit an identity of its own. A particular one-of-one is then tracked and picked as itself, rather than as one more count against a shared SKU. This goes beyond the SKU scan, so tell us which pieces need it and how many, and we can talk through what it would take.
Serialized tracking tells you which unit you have. A condition record tells you what shape it was in. When a high-value piece arrives, its condition can be captured, often in photographs, so the piece a customer later receives has something to be matched against. If a question about condition comes up, there is a record to check. This is also a step beyond the SKU scan, so ask any provider whether it does this today and to see a sample record. The record describes how a piece arrived and is never a grade or an authentication. We're a 3PL: we ship, and we don't grade, authenticate or slab.
When a buyer complains about the condition of an ordinary item, you send a clean one from stock. A one-of-one can't be replaced, because that single piece is all the stock there is. If the customer says it arrived in a different state than they expected, it helps to have a record of which unit shipped and its condition when it was handled. Without one, it comes down to your word against theirs, and on a high-value piece that argument is expensive.
A record kept for each piece, with its condition noted, exists to:
Records differ from one warehouse to the next, so find out what a record holds and look at a sample before you rely on it. For the interchangeable bulk of a catalog, the SKU scan is still enough. The extra tracking is for pieces with no identical copy to fall back on.
Serialized item-level inventory keeps a separate record for each unit, instead of counting it as one more of a SKU. Condition documentation notes the state a specific unit was in, often when it arrives, so the piece a customer receives can be matched to the piece that went on the shelf. Together they tell you which exact piece you have and what shape it was in, as well as how many you hold. For unique, high-value pieces, that difference is the one that counts.
Our scans at pick and at pack check every order against the right SKU and variant, so a look-alike shows up at the scan before it ships. For interchangeable stock that is enough. Serialized handling goes further. It tracks the specific unit as well as its SKU, and pairs that with a record of the unit's condition. A one-of-one or a signed single piece can call for it. If your line needs it, raise it with our team, and ask any provider to show you a sample record.
A single graded slab or an autographed one-off has no identical twin. When two pieces look nearly the same but differ in condition, only a record kept for each piece shows which one shipped and the state it left in. That gives a later condition question something to check against. It can also help when you discuss declared value and inventory insurance. What a record captures differs from one warehouse to the next, so ask any provider what its record holds and to see a sample. Interchangeable SKUs are well served by the SKU scan, and tracking each piece pays off at the unique, high-value end of a catalog.
No. Grading and authentication belong with outside companies such as PSA, BGS, SGC and CGC. Writing down the state a unit was in when it was handled is part of keeping records. It isn't a grade or a certification, and it never takes the place of a grading company's opinion.
On every order today, we scan barcodes by SKU at pick and at pack, and returned items are inspected before they are restocked. Your inventory may need more than that, with each piece tracked on its own or its condition photographed at intake. Tell our team what you sell and in what volume, and we can talk through what it would take.
Each order is scanned at pick, scanned again at pack, and checked against the record both times. A different parallel of the same card, or a different print run of the same set, is the kind of near-match the scan is there to catch before the parcel leaves. Where serialized tracking is in use, it narrows that match from the SKU to the exact unit.