即使Amazon上麵標注出售商家是Amazon.com，你也很有可能收到假貨。Amazon的庫存並不區分自己的庫存和那些代管的庫存。你收到的產品可能是那些不法經銷商的假貨庫存。從B&H或者Adorama買比較放心。這些Amazon都有公開信息，隻不過很多人不會看到這麽仔細。
By default, Amazon does not segregate FBA inventory by seller—even Amazon’s own stock can be pooled together with third-party sellers’ units for the same product. This is known as “commingled inventory,” where items sharing the same UPC/EAN/ISBN (or ASIN) are mixed in Amazon’s fulfillment centers and picked interchangeably when orders are placed .
Amazon’s first-party (1P) vendor inventory—marked “Ships from and sold by Amazon.com”—is managed separately through Vendor Central and isn’t part of the FBA commingling pool. However, any inventory (even Amazon’s) that enters FBA under manufacturer barcodes (i.e. stickerless, commingled inventory) will be mixed with identical items from other sellers . Sellers who opt out of commingling by applying Amazon-issued FNSKU labels instead of using the manufacturer barcode keep their units in dedicated, non-commingled bins.
Because of commingling, you can end up receiving a counterfeit unit from another seller’s batch—even if a listing shows “Sold by Amazon.com.” Fake products slip in when pooled stock isn’t uniquely labeled, and Amazon’s system can’t distinguish which merchant originally supplied that particular unit .
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“Stickerless, commingled inventory” (units pooled by manufacturer barcode, not by seller):
https://sellercentral.amazon.com/seller-forums/discussions/t/00d44f01-bf57-4215-9a18-8660ec840c0f -
“Sold by Amazon” vs. third-party FBA sellers (vendor-managed stock kept separate):
https://sellercentral.amazon.com/seller-forums/discussions/t/6621883a-1626-4ce4-8288-1b136cf15ffe -
Using manufacturer barcodes (UPC/EAN) creates commingled inventory:
https://sellercentral.amazon.com/seller-forums/discussions/t/e2ac50323d96c0bb669b1aac3599fb7f -
Opting for Amazon-issued FNSKU labels keeps your stock segregated:
https://sellercentral.amazon.com/seller-forums/discussions/t/76575f622ff790e9648333f752a5a99c -
Counterfeit risk when inventory is commingled (no way to trace back):
https://sellercentral.amazon.com/seller-forums/discussions/t/76575f622ff790e9648333f752a5a99c -
How to change your default barcode preference (opt out of commingling):
https://m.media-amazon.com/images/G/01/fba-help/QRG/FBA_Label_Products_en-US.pdf -
Amazon Transparency (anti-counterfeit serialization) program:
https://sellercentral.amazon.com/help/hub/reference/external/202008510?locale=en-US -
Buying “Ships from and sold by Amazon.com” (Vendor Central) to avoid FBA pooling:
https://sellercentral.amazon.com/seller-forums/discussions/t/6621883a-1626-4ce4-8288-1b136cf15ffe
