Creating iTunes app
Point your browser to iTunes Connect and login to your developer account.
It should look similar to this when you're done.
Go back to the web page. And select “Manage your apps”
Create new app, and fill all the required fields. After app is created you can get necessary app info to provide it to the plugin and create In-App purchases and Game Center.
1) Your Apple id. Required for plugin to work correctly.
2) Your App Bundle ID. Required for plugin to work correctly.