Specifies the criteria for filtering search results by site, where site is determined by the site ID in the request.
(in) Items listed in the currency implied by the site specified in the request.
(in) Items located in the country implied by the site specified in the request.
(in) Items available to the country implied by the site specified in the request. For the US site, this implies listings from ALL English-language countries that are available to the US.
(in) Items listed on the site specified in the request, regardless of listing currency.
(in) Items located in Belgium or listed on one of the two Belgian sites.
(out) Reserved for internal or future use.