Only the following GTINs can be used in trade item information:
- GTINs which have been created using a GS1 company prefix issued by GS1 Sweden, another national GS1 organisation or GS1 Global Office.
- In Sweden, a variable measure number (starting “2X”) can be used as a GTIN for consumer units with variable weight. In some countries, for example the Netherlands, a variable measure number cannot be used as a GTIN, but a “proper” GTIN must be used. The supplier must therefore check what applies for recipients in different countries.
- ISSN and ISBN can be used as GTINs for books by agreement between GS1 and the respective organisations.