Looking at your screenshot the warning seems typical when unverified scopes are present however if the email does say that if the app is not verified by August 18, 2019, it will be classified as unverified then I suggest getting the submission done.
>From the 3 warnings, "Use of this API scope will be restricted until it is approved" "Use of this domain will be restricted until it is approved" and "Because you've added a sensitive scope, your consent screen requires verification by Google before it's published" I not found any evidence that by submitting the verification, that the scope would not be able to be used and the warning themselves do not seem to point to this. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/85bcd6f1-5e5c-4a8e-ac5c-4719fa4d18a7%40googlegroups.com.