[dynamic_links] Can buildShortLink be used with a custom domain?

[mu-projects]

I am trying this code

final DynamicLinkParameters parameters = DynamicLinkParameters(
  uriPrefix: 'https://newlink.co',
  link: Uri.parse("https://github.com/FirebaseExtended/flutterfire/"),
  dynamicLinkParametersOptions: DynamicLinkParametersOptions(
    shortDynamicLinkPathLength: ShortDynamicLinkPathLength.short,
  ),
);

final ShortDynamicLink shortLink = await parameters.buildShortLink();

but throw this error
PlatformException(short_link_error, 8: , null, null)

When i change uriPrefix with firebase page.link address https://newlink.page.link, it is working.

Why I can't use custom domain?