Product Identification Built for FBA Prep Centers
Scan or type any barcode and get the product name, images, UPC, EAN, matching ASIN, and variation details from 1.6B+ products.
No booking needed. Try it on your next inbound.
FBA prep centers live and die by one question: what exactly is this unit, and which client listing does it belong to? EcomSource answers it in seconds. Scan or type any barcode and get the product name, images, UPC, EAN, matching ASIN, and variation details, drawn from an index of more than 1.6 billion products.
TL;DR
- •Match any inbound barcode to its Amazon ASIN and variation before you label a single unit.
- •Catch supplier mistakes at the receiving bench, not after Amazon check-in.
- •Work by Chrome extension at the desk, CSV for whole shipments, or API inside your WMS.
- •Plans start free. A busy receiving desk runs on the $10 per month Starter plan (pricing current as of August 2026).
What is FBA prep?
FBA prep is the work of getting products ready for Amazon fulfillment centers: checking the items, labeling each unit with the right FNSKU barcode, polybagging or bundling where required, and shipping the boxes in. Prep centers do this as a service for Amazon sellers, so one warehouse handles inventory for many different clients at once.
The identification problem every prep center knows
Stock arrives from suppliers your clients chose, in packaging you have never seen. The packing list says one thing, the barcodes say another. One wrong match and the wrong FNSKU goes on 500 units, and the mistake surfaces weeks later as a client dispute.
Doing this by hand means googling barcodes, opening Amazon tabs, and guessing between look-alike variations. That is slow at ten units and dangerous at ten thousand.
How prep centers use EcomSource
| Prep task | What EcomSource does |
|---|---|
| Receiving check-in | Scan the barcode on the case, see the product record instantly: name, images, UPC, EAN, and matching ASIN. |
| Variation matching | Parent and child variation data shows exactly which size and color the unit is before labeling. |
| Mismatch catching | If the supplier barcode resolves to a different product than the client listing, you see it at the bench. |
| Whole shipments | Upload the manifest to the bulk barcode lookup and match hundreds of lines in one pass. |
| Client reporting | Attach clean identifiers to billing lines so every prepped unit is traceable to a listing. |
| System integration | The API drops the same lookups into your WMS or receiving software. |
A receiving workflow that holds up under volume
Step 1. Scan the barcode at the bench with the Chrome extension open. The record appears next to the Amazon page.
Step 2. Confirm the ASIN and variation against the client listing. Two clicks, no tab hunting.
Step 3. Print the FNSKU and label. The unit is now traceable end to end.
Step 4. For container-size inbounds, skip the bench: run the whole manifest through bulk lookup first, then only hand-check the lines that failed to match.
If a client sends stock with no barcodes at all, search by product name or model, confirm the UPC from the record, and work from there. Our free UPC lookup and ASIN to UPC converter handle the one-off checks between shipments.
Why identifiers are becoming a compliance issue
Amazon ties listings to GTINs, and brand owners increasingly enroll products in Brand Registry, which makes correct UPC-to-ASIN matching part of staying out of trouble. Our guide to Amazon Brand Registry UPC requirements covers what prep centers need to watch for when clients bring branded stock.
What it costs
Figures from the pricing page, current as of August 2026. The free plan includes 10 lookups a day, enough to trial the workflow on a real inbound. Starter at $10 per month covers 3,000 lookups with variation data, which suits a steady receiving desk. Pro at $49 per month covers 10,000 lookups with chat support. API plans are separate and scale to millions of calls via the barcode lookup API and product data API.
Running ten client catalogs without mixing them up
Prep centers do not manage one catalog, they manage one per client. The pattern that works: keep a per-client identifier map, client SKU to UPC to ASIN, exported from the bulk tool after each new product intake. When a dispute comes months later, the receiving record with the resolved identifiers and product images is the paper trail that settles it in minutes instead of email threads.
Receiving traps this catches at the bench
- Case codes read as unit codes. Cartons carry 14-digit GTIN-14 codes while the units inside carry 12 or 13 digits. Scanning the wrong one books the wrong quantity.
- Variation swaps. The supplier shipped the right shirt in the wrong size split. Variation data exposes it before 500 wrong labels go on.
- Relabeled stock. A supplier sticker over the factory barcode. The record photo makes the mismatch obvious.
- Look-alike bundles. A two-pack has its own GTIN, different from the single unit. Bundles booked as singles create phantom inventory.
Try it on your next inbound
Open the free tool, scan five units from your next shipment, and see how much bench time the record view saves. No signup needed for the first look.
Frequently Asked Questions
What is an FBA prep center?
An FBA prep center is a warehouse that prepares products for Amazon fulfillment on behalf of sellers: inspection, FNSKU labeling, polybagging, bundling, and shipping into Amazon. Most prep centers serve many seller clients at once.
How do prep centers identify products without labels?
By searching the product name, brand, or model number to find the record, then confirming with the UPC or EAN from that record. EcomSource returns all identifiers together, so one search produces the code needed for labeling.
What is the difference between an FNSKU and a UPC?
A UPC identifies the product everywhere and comes from GS1. An FNSKU is Amazon's fulfillment barcode and identifies a product from one specific seller inside Amazon warehouses. Prep centers cover the UPC with the FNSKU label when required.
Can EcomSource connect to our warehouse software?
Yes. The product data API returns the same records as the web tools as JSON, so your WMS or receiving system can look up identifiers automatically. Documentation and a free sandbox key are available to test it.
How much does it cost for a prep center?
The free plan covers 10 lookups a day. Starter is $10 per month for 3,000 lookups, Pro is $49 per month for 10,000, and API plans scale beyond that (pricing current as of August 2026). Which plan fits depends on your daily unit volume.
Can it handle case-level barcodes on cartons?
Cartons usually carry GTIN-14 codes. Search the code as scanned, and if the case level is not indexed for that product, look up the unit UPC printed on the retail packaging inside. The record links the levels where the data exists.