Identify standards


GS1 Identification Standards (ID Keys) provide access and sharing of information in the supply chain. They enable organisations to assign globally standardised identifiers to products, logistics units, documents, physical locations and more. The Identify Standards are globally unique, and they can be shared between organisations worldwide, increasing supply chain visibility for all stakeholders.

To obtain or allocate a GS1 Identify Standard, your organisation must be a GS1 member. These GS1 ID Keys, allow organisations to connect items with events and related information, as in the table below.


Global Trade Item Number (GTIN)

The GTIN is a globally unique number that identifies a product. The GTIN is made up of:

  • Your global company prefix (licensed by GS1)
  • An item number (allocated to each product variant)
  • A check digit

The barcode image allows a computer (or a mobile device) to quickly and reliably identify a product and look up information about the product in a database, such as its price, brand name or item description. The barcode is a representation of the GTIN (i.e., the numbers) in a machine readable form - the barcode scanner will read and decode the vertical lines and spaces and then send the information back to the computer to interpret and process. 

GTIN management rules

GTIN management rules provide guidance on why and when to allocate GTINs to products.

Does my product need a new GTIN?

If any on the answers below is YES, a new GTIN is required.

  1. Are the consumer and/or trading partner going to expect to be able to distinguish this product from others?
  2. Is there any new regulatory/liability disclosure required by the consumer or trading partner?
  3. Is there a logistical implication created by the change?

How do I get a barcode?

To be licensed GTINs that you can turn into barcodes you need to be a member of GS1 New Zealand. Membership options are based on a company’s total (i.e., not just barcoded products) annual turnover. Find out more information

Global Location Number (GLN)

A Global Location Number (GLN) is used to identify a legal entity (e.g. GS1 New Zealand) as well as physical (e.g. dock door) and functional (e.g. marketing department) locations. The GLN is 13 digits long and is currently licensed individually by GS1 New Zealand.

How do I get a Global Location Number (GLN)?

To get a GLN you need to be a member of GS1 New Zealand.

If you are already a member, simply login into your MyGS1 account and on the left hand side menu click on ‘Global Location Numbers’. On this page you will see your GLNs and can edit the details assigned to each GLN.

For assistance contact GS1 Support Team:

Email: [email protected] 
Phone: 0800 10 23 56)

If you are a Full GS1 New Zealand member you receive five free GLNs. You can be allocated more GLNs by logging into your MyGS1 account.

GLN Allocation Rules

Global Location Numbers have allocation rules to ensure correct use and assignment. For more information please visit the GS1 global website, or contact GS1 Support Team.

GS1 Identification keys

Identification method

Used to identify


Global Trade Item Number (GTIN)

Products and services

Can of soup, chocolate bar, music album

Global Location Number (GLN)

Parties and locations

Companies, warehouses, factories, stores

Serial Shipping Container Code (SSCC)

Logistics units

Unit loads on pallets, roll cages, parcels

Global Returnable Asset Identifier (GRAI)

Returnable assets

Pallet cases, crates, totes

Global Individual Asset Identifier (GIAI)


Medical, manufacturing, transport and IT equipment

Global Service Relation Number (GSRN)

Service provider and recipient relationships

Loyalty scheme members, doctors at a hospital, library members

Global Document Type Identifier (GDTI)


Tax demands, shipment forms, driving licences

Global Identification Number for Consignment (GINC)


Logistics units transported together in an ocean container

Global Shipment Identification Number (GSIN)


Logistics units delivered to a customer together

Global Coupon Number (GCN)


Digital coupons

Component/Part Identifier (CPID)

Components and parts

Automobile parts


More information

For more information about GS1 Identification Keys visit GS1 Global website, and to see the GS1 Serial Shipping Container Code Supplier Information (SSCC).