I believe that the Next -> button that appears in the upper right hand corner of the Avatar Creator shouldn’t be shown if the show avatar creation success window has been disabled in the developer dashboard? Or does that button do something other than display the GLB URL? I haven’t seen it do anything else.
Hello,
Many developers also use that button to finalize the avatar creation so that would be one use case.
If you would like to not display it, you can always customize the Avatar Customization interface. You can learn more about this in our documentation for Unity: Build your own Avatar Creator | Ready Player Me and Unreal: Build your own Avatar Creator | Ready Player Me