A Schema.org Property
The GTIN-14 code of the product, or the product to which the offer refers. See GS1 GTIN Summary
for more details.
Values expected to be one of these types
GoodRelations Vocabulary Terms
This term uses
terminology from the GoodRelations Vocabulary for E-Commerce, created by Martin Hepp. GoodRelations is a data model for sharing e-commerce data on the Web. More information about GoodRelations can be found at http://purl.org/goodrelations/