The old App Engine &#x2F; API &#x2F; Admin console era is over.  All tasks have been migrated to <a href="https:&#x2F;&#x2F;console.cloud.google.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;console.cloud.google.com&#x2F;</a> including some of the last App Engine specific administration things.