A Schema.org Property
The beginning of the availability of the product or service included in the offer.
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/