Org.AI FoundationSchemaPartner

additionalProperty

A property-value pair representing an additional characteristic of the entity, e.g. a product feature or another characteristic for which there is no matching property in schema.org.

Note: Publishers should be aware that applications designed to use specific schema.org properties (e.g. https://schema.org/width, https://schema.org/color, https://schema.org/gtin13, ...) will typically expect such data to be provided using those properties, rather than using the generic property/value mechanism.

Value
PropertyValue
Used on
6 types
Source
Schema.org 30.1

JSON-LDMarkdown

A MerchantReturnPolicy, an Offer, or one of 4 other types can have an additionalProperty, and its value is a PropertyValue.

Used on

6 types have an additionalProperty, and so does every type that descends from them.

Its value

Its value is a PropertyValue.

Where this comes from

Quoted from Schema.org, and credited. Nothing in this definition is written by us.

  1. Published by
  2. Release
    Version 30.116 September 2026
  3. License
    CC BY-SA 3.0Free to copy and adapt, with credit, under the same licence
  4. Changed by us
    Nothing.

Use this property

Its definition is free to reuse, with credit to Schema.org. The same property is here as data, for programs and for language models.

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