schema.org – Value "ItemAvailability" for items directly from factory (non-stocked distribution)?

Someone knows the best way to communicate ItemAvailability in cases where the article can not be stored, but that the article is available directly from the manufacturer / factory?

In other words, a company may sometimes offer a product only through authorized resellers, but prohibit any reseller or distributor from stocking the product. So the retailers e-commerce site can not say with precision In stock or Out of stock? Online only would seem unnecessary to the end user in this case?

Members of the enumeration

  • Abandoned
  • In stock
  • In store only
  • Limited availability
  • Online only
  • Out of stock
  • Preorder
  • presale
  • Exhausted