I am using iTunes Store Search API and I want to retrieve the app info by app id. The problem is that for some apps and some country codes API returns empty results.
For example:
https://itunes.apple.com/lookup?id=591764200&country=de - returns full info https://itunes.apple.com/lookup?id=591764200&country=us - does not return info
Can it be somehow connected to sale territories limitations?
yes, if the app is not available or not for sale in that country, it won't be in the result list.
UPDATE 1: i took another look at it: the app is actually a bundle that contains 4 apps, from which only 2 are available in the US (Merry Cook HD and Space Bridge HD) and two are not available (Mysteries of the Ocean HD and Where Are My Eggs? HD)