Link to app in store

You can only advertise one app in each ad group. You can't change your app link after you save the ad group.

Please note that the system retrieves information for the country indicated in your link to the app store. Use advanced parameters so that your ad leads to the app store of a particular country. If no country is indicated in the link parameters, then data for Russia will be uploaded by default.

AppStore

The country is specified in the part of the link that follows itunes.apple.com.

https://itunes.apple.com/ru/app/yandex.browser-for-iphone/id483693909
Google Play

Use the gl country parameter to specify your country.

https://play.google.com/store/apps/details?id=com.yandex.browser&gl=ru