iOS App Store displayed languages

I have finished a mobile game in Unreal Engine 4.17 and localized it to several languages. All works so far, I can change languages and all of that but when I check the App Store page it only shows English as Language.

Where do the available languages displayed for my app on the App Store come from? This list of available languages shown on the App Store is based on your app bundle’s localization (.lproj) folders. Missing, incorrect, or invalid localizations in your app bundle can be caused by misconfigured localizations in your Xcode project. You cannot change the languages shown on the App Store by editing the localizations on iTunes Connect.

Im aware of this but I cant find any info in how set up the build correctly or why is not working. Any help would be appreciated. Thanks!

So I found the field [CFBundleLocalizations][1] in the plist doc, and now the languages added to that field are listed in the App Store as languages supported by the application.

Used the extra PList Data field in Platforms → IOS and added the values there.

Here is an example of the values I used;

<key>CFBundleLocalizations</key>
<array>	
	<string>ar</string>
	<string>hy</string>
	<string>bg</string>
	<string>zh-Hans</string>
	<string>zh-Hant</string>
	<string>hr</string>
	<string>cs</string>
	<string>da</string>
	<string>nl</string>
	<string>en</string>
	<string>tl</string>
	<string>fi</string>
	<string>fr</string>
	<string>de</string>
	<string>el</string>
	<string>hu</string>
	<string>id</string>
	<string>it</string>
	<string>ja</string>
	<string>ko</string>
	<string>ms</string>
	<string>nb</string>
	<string>pl</string>
	<string>pt</string>
	<string>pt-BR</string>
	<string>ro</string>
	<string>ru</string>
	<string>sr</string>
	<string>sk</string>
	<string>sl</string>
	<string>es</string>
	<string>tr</string>
	<string>en</string>
	<string>vi</string>
</array>