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.
PropertyExpected TypeDescription
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
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 Text  or
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 offered.
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
The organization or person making the offer.
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 date when the item becomes valid.
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.
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. tools may have only weaker understanding of extra types, in particular those defined externally.
alternateName Text An alias for the item.
description Text A short description of the item.
image ImageObject  or
URL of an image of the item.
name Text The name of the item.
potentialAction Action Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
sameAs URL URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Freebase page, or official website.
url URL URL of the item.

Instances of Demand may appear as values for the following properties
PropertyOn TypesDescription
seeks Organization  or
A pointer to products or services sought by the organization or person (demand).


This class is derived from the GoodRelations Vocabulary for E-Commerce, created by Martin Hepp. GoodRelations is a data model for sharing e-commerce data on the Web that can be expressed in a variety of syntaxes, including RDFa and HTML5 Microdata. More information about GoodRelations can be found at

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