GSIN

The GSIN or Global Shipment Identification Number is the GS1 Identification Key used to identify a grouping of logistics units that comprise a shipment from one consignor to one consignee (buyer) referencing a despatch advice and/or BOL. The GS1 Identification Key is comprised of a GS1 Company Prefix, Shipper Reference and Check Digit and may be encoded in a barcode symbol using the Application Identifier or AI (402).

The GSIN is constructed as:

GS1 Global Company Prefix > < Shipper Reference																Check Digit
N₁	N₂	N₃	N₄	N₅	N₆	N₇	N₈	N₉	N₁₀	N₁₁	N₁₂	N₁₃	N₁₄	N₁₅	N₁₆	N₁₇

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