I have configured a G Suite market place application and it's still in the test level. After filling the configuration page of the market application I got a button named "Integrate with Google" in the top of the Marketplace SDK configuration page
After clicking the button I get a pop up with the title "Domain wide install" there we have the "Continue" button. Previously that button redirected users to the consent screen, but it doesn't redirect to anything now. I did not change anything in the configuration so I guess this is probably a change from Google side.
Please let me know what the issue is?
There is an open Issue on Google's Issue tracker about this at:
https://issuetracker.google.com/153243016
You should add a start next to the issue number, for it to get more visibility.