You can register new in-app items for your IAP-integrated Android and Gear apps, either one at a time, or many at a time via an Excel spreadsheet file. You can update or delete an in-app item (one at a time) that you have already registered (for example, to change item pricing).
Note: In-app items registered to your app will be available to users who download any of your app's binary files. ALL of your app's binary files must have the same package name.
Before you submit your app for certification or after your app has passed certification, you can register new items and update and delete registered items. Deleting items makes them permanently unavailable. However, while your app and its items are undergoing certification, in-app items cannot be registered, updated, or deleted.