Thing > Intangible > Demand

A demand entity represents the public, not necessarily binding, not necessarily exclusive, announcement by an organization or person to seek a certain type of goods or services. For describing demand using this type, the very same properties used for Offer apply.

Property	Expected Type	Description
Properties from Thing
additionalType	URL	An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.
description	Text	A short description of the item.
image	URL	URL of an image of the item.
name	Text	The name of the item.
url	URL	URL of the item.
Properties from Demand
acceptedPaymentMethod	PaymentMethod	The payment method(s) accepted by seller for this offer.
advanceBookingRequirement	QuantitativeValue	The amount of time that is required between accepting the offer and the actual usage of the resource or service.
availability	ItemAvailability	The availability of this item—for example In stock, Out of stock, Pre-order, etc.
availabilityEnds	DateTime	The end of the availability of the product or service included in the offer.
availabilityStarts	DateTime	The beginning of the availability of the product or service included in the offer.
availableAtOrFrom	Place	The place(s) from which the offer can be obtained (e.g. store locations).
availableDeliveryMethod	DeliveryMethod	The delivery method(s) available for this offer.
businessFunction	BusinessFunction	The business function (e.g. sell, lease, repair, dispose) of the offer or component of a bundle (TypeAndQuantityNode). The default is http://purl.org/goodrelations/v1#Sell.
deliveryLeadTime	QuantitativeValue	The typical delay between the receipt of the order and the goods leaving the warehouse.
eligibleCustomerType	BusinessEntityType	The type(s) of customers for which the given offer is valid.
eligibleDuration	QuantitativeValue	The duration for which the given offer is valid.
eligibleQuantity	QuantitativeValue	The interval and unit of measurement of ordering quantities for which the offer or price specification is valid. This allows e.g. specifying that a certain freight charge is valid only for a certain quantity.
eligibleRegion	GeoShape or Text	The ISO 3166-1 (ISO 3166-1 alpha-2) or ISO 3166-2 code, or the GeoShape for the geo-political region(s) for which the offer or delivery charge specification is valid.
eligibleTransactionVolume	PriceSpecification	The transaction volume, in a monetary unit, for which the offer or price specification is valid, e.g. for indicating a minimal purchasing volume, to express free shipping above a certain order volume, or to limit the acceptance of credit cards to purchases to a certain minimal amount.
gtin13	Text	The GTIN-13 code of the product, or the product to which the offer refers. This is equivalent to 13-digit ISBN codes and EAN UCC-13. Former 12-digit UPC codes can be converted into a GTIN-13 code by simply adding a preceeding zero.
gtin14	Text	The GTIN-14 code of the product, or the product to which the offer refers.
gtin8	Text	The GTIN-8 code of the product, or the product to which the offer refers. This code is also known as EAN/UCC-8 or 8-digit EAN.
includesObject	TypeAndQuantityNode	This links to a node or nodes indicating the exact quantity of the products included in the offer.
inventoryLevel	QuantitativeValue	The current approximate inventory level for the item or items.
itemCondition	OfferItemCondition	A predefined value from OfferItemCondition or a textual description of the condition of the product or service, or the products or services included in the offer.
itemOffered	Product	The item being sold.
mpn	Text	The Manufacturer Part Number (MPN) of the product, or the product to which the offer refers.
priceSpecification	PriceSpecification	One or more detailed price specifications, indicating the unit price and delivery or payment charges.
seller	Organization or Person	The seller.
serialNumber	Text	The serial number or any alphanumeric identifier of a particular product. When attached to an offer, it is a shortcut for the serial number of the product included in the offer.
sku	Text	The Stock Keeping Unit (SKU), i.e. a merchant-specific identifier for a product or service, or the product to which the offer refers.
validFrom	DateTime	The beginning of the validity of offer, price specification, or opening hours data.
validThrough	DateTime	The end of the validity of offer, price specification, or opening hours data.
warranty	WarrantyPromise	The warranty promise(s) included in the offer.

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