Context - This is a proposal from Google based on our experience consuming schema.org /Organization markup and working with similar data from online merchants. If it were accepted, it would make it easier for us and others to recognize which web sites are online sellers.

The /Organization type has many sub-types, but none accurately represents an online seller or store. Detecting the nature of organizations on the web, and e-commerce web sites in particular, is useful for general web site understanding. We therefore suggest to add an /OnlineStore subtype of /Organization.