Product Advertising API
Developer Guide (API Version 2013-08-01)

Related Items

The RelatedItems response group returns information about items related to the one specified in an ItemLookup request. The item is specified in an ItemLookup request. Digital items include downloadable music (search index: MP3Downloads), downloadable video (search index: UnboxVideo), and digital books (search index: KindleStore). A related item could be, for example, all of the shows in a TV series that are available separately, or, for example, all of the songs on a CD.

The basis upon which the item(s) are related is specified by the RelationshipType parameter. The RelatedItems response group requires that you include in the ItemLookup request the RelationshipType parameter. Sample values include Episode, Season, Tracks, and Variation. For a complete list of values, see ItemLookup.

Each ItemLookup request can return, at most, ten related items. To return additional items, use the RelateditemPage parameter. A value of 2, for example, returns the second set of ten related items.