GS1 Identification Keys

GS1 ID Keys allow companies to provide information about their goods by assigning standard identifiers to products, documents, and locations. To establish a globally unique key, first register with GS1 for a GS1 Company Prefix, which is required as part of the ID Keys listed below. These ID Keys can be encoded in a GS1-128 Barcode or an RFID tag. The GS1-128 Barcode Font Suite meets ISO/IEC 15459 standards as required by GS1.org and contains 18 different Code 128 font sizes that precisely match any GS1-128 specification, including integrating Application Identifiers (AI) as needed.

NOTE: When generating GS1 symbols, IDAutomation recommends testing the result with the GS1 Data Decoder App, which parses most GS1 data and can verify proper encoding.

GS1-CPID

The Component – Part Identifier is used to identify an item that is part of a complete good, such as a component as part of a circuit board. The CPID structure is up to 30 characters and is set up as follows:

• Application Identifier: AI 8010
• GS1 Company Prefix: Assigned by GS1.org.
• Item Identifier: Variable length, up to 30 characters, reference number assigned by the individual company to identify the item.

GS1-GCN

The Global Coupon Number is used to identify coupons that can be received and retrieved electronically. The GCN structure is as follows:

• Application Identifier: AI 255
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Coupon Reference: Assigned by individual companies to identify coupons, generally assigned sequentially.
• Check Digit: Mod 10 check digit.
• Serial Number: Optional alphanumeric number assigned by the individual company to identify the coupon code.

GS1-GDTI

The Global Document Type Identifier is used to identify individual documents, including the class and/or type of document. The GDTI structure is up to 30 characters and is set up as follows:

• Application Identifier: AI 253
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Document Type: Assigned by an individual company to identify a document, generally assigned sequentially.
• Check Digit: Mod 10 check digit.
• Serial Number: An optional alphanumeric number assigned by the individual company to identify a document.

GS1-GIAI

The Global Individual Asset Identifier is used to identify an individual asset within a business. The GIAI structure is up to 30 characters and is set up as follows:

• Application Identifier: AI 8004
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Individual Asset Reference: Assigned by an individual company to identify assets, generally assigned sequentially.

GS1-GINC

The Global Identification Number for Consignment is used to identify specific units of a shipment, whether it stays with the original shipment or not, before making it to the final destination. The
GINC structure is up to 30 characters and is set up as follows:

• Application Identifier: AI 401
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Serial Number: An optional alphanumeric number assigned by the individual company to identify a document.

GS1-GLN

The Global Location Number is used to identify a physical location or legal (functional) entity of a business. The GLN structure is 13 characters and is set up as follows:

• GS1 Company Prefix: Assigned by GS1.org.
• Location Reference: Variable length, up to 6 characters, reference number assigned by the individual company to identify an item.
• Check Digit: Mod 10 check digit.

GS1-GRAI

The Global Returnable Asset Identifier is used to identify a returnable asset, reusable packages, or transport equipment. The GRAI structure is up to 30 characters and is set up as follows:

• Application Identifier: AI 8003
• Leading Zero: Added before GS1 Company Prefix (6-9 digits) and Asset Type to fill the 14th position.
• GS1 Company Prefix: Assigned by GS1.org
• Asset Type: Assigned by an individual company to identify returnable assets, generally assigned sequentially.
• Check Digit: Mod 10 check digit.
• Serial Number: An optional alphanumeric number assigned by the individual company to identify the returnable asset.

GS1-GSIN

The Global Shipment Identification Number is used to identify a shipment transported from the seller to the buyer. Each unit within the shipment will have a separate SSCC, but the entire shipment will be identified under one Bill of Lading. The GSIN structure is up to 17 characters and is set up as follows:

• Application Identifier: AI 402
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Shipper Reference: Assigned by an individual company to identify a shipment of goods, generally assigned sequentially.
• Check Digit: Mod 10 check digit.

GS1-GSRN

The Global Service Relation Number is used to identify a business relationship between a company and an individual, such as a club membership or loyalty program. The GSRN structure is 18 characters and is set up as follows:

• Application Identifier: AI 8018
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Service Reference: Assigned by an individual company to identify a shipment of goods, generally assigned sequentially.
• Check Digit: Mod 10 check digit.

GS1-GTIN

The Global Trade Item Number is used to identify trade items transported through the supply chain to the final user. A GTIN can be encoded using UPC-EAN, ITF-14, GS1-128, GS1 DataBar, and Data Matrix, and can be 8, 12, 13, or 14 digits in length; however, GS1 recommends appending zeros to the beginning of the GTINs to fill out to 14 characters. The GTIN structure is as follows:

• Indicator Digit: Specifically for GTIN-14
• GS1 Company Prefix: Assigned by GS1.org. Some GS1 members will have a UPC Company Prefix, and to convert the UPC Prefix to a GS1 Prefix, add a leading zero.
• Item Reference: Assigned by an individual company to identify a trade item, generally assigned sequentially.
• Check Digit: Mod 10 check digit.

GS1-SSCC

The Serial Shipping Container Code is used to identify a specific unit as part of a larger shipment. The SSCC structure is 18 characters and is set up as follows:

• Application Identifier: AI 00 to indicate an SSCC barcode.
• Extension Digit: 1 Digit (0-9).
• GS1 Company Prefix: Assigned by GS1.org
• Serial Reference: Assigned by an individual company to identify a unit, generally assigned sequentially.
• Check Digit: Mod 10 check digit.

Additional GS1 Font Packages:

• GS1 DataBar
• GS1 Data Matrix
• GS1 QR-Code