GTIN (Global Trade Item Number)

As the name implies, the GTIN helps automate the trading process – basically buying and selling. GTINs are therefore assigned to any item (product or service) that may be priced, or ordered, or invoiced at any point in any supply chain. The GTIN is then used to to retrieve pre-defined information about the item. The key benefit is that information about the item can be retrieved about the product from the GTIN whether it is read in a GS1 BarCodes symbol, exchanged via a GS1 eCom message or accessed from the Global Data Synchronisation Network.

For help implementing GTINs, visit our GTIN Allocation Rules.

There are four ways to construct a GTIN:

 

  • GTIN-14 data structure

     

    Indicator GTIN of the items contained
    (without check digit)
    Check
    Digit
    N1
    N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12
    N13
    N14
  •  

  • GTIN-13 data structure

     

    GS1 Company Prefix >                < Item Reference
    Check
    Digit
    N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12
    N13
  •  

  • GTIN-12 data structure

     

    GS1 Company Prefix >                < Item Reference
    Check
    Digit
    N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11
    N12
  •  

  • GTIN-8 data structure (GTIN-8s are normally assigned one-by-one)

     

    GS1-8 Prefix >              < Item Reference
    Check
    Digit
    N1 N2 N3 N4 N5 N6 N7
    N8

 

The following table summarises GTIN attributes:

 

Numbering
Structures
Global Trade Item Number (GTIN)
 

T1

T2

T3

T4

T5

T6

T7

T8

T9

T10

T11

T12

T13

T14

GTIN-14

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

N14

GTIN-13

0

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

GTIN-12

0

0

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

GTIN-8

0

0

0

0

0

0

N1

N2

N3

N4

N5

N6

N7

N8

 

For a more detailed overview on the benefits of GTIN see GTIN Executive Summary.

Information about other keys