I have created an app package from a win32 app using the Desktop App Converter. It needs to install two truetype fonts in order to display music. It uses the windows.sharedFonts extension in the AppxManifest.xml for this purpose. When I submit to the store I receive the following error:
Package acceptance validation error: You can't use extension windows.sharedFonts with this account. Contact our support team if you'd like to request permissions to use this extension.
Is there a better alternative to install these fonts? Otherwise how do I best contact the support team?
You could contact the dev centre team via aka.ms/storesupport the same as one would for any other publishing permissions issue.
If you only need the fonts in their app then you can include them there and use them directly. SharedFonts is only needed to provide fonts to other applications on the system.