An offer to transfer some rights to an item or to provide a service — for
example, an offer to sell tickets to an event, to rent the DVD of a
movie, to stream a TV show over the internet, to repair a motorcycle, or
to loan a book.\n\nNote: As the SchemabusinessFunction property, which
identifies the form of offer (e.g. sell, lease, repair, dispose),
defaults to http://purl.org/goodrelations/v1#Sell; an Offer without a
defined businessFunction value can be assumed to be an offer to
sell.\n\nFor
GTIN-related fields,
see Check Digit
calculator
and validation
guide
from GS1.
See https://schema.org/Offer