Three levels, in Settings
Settings → “What Render does on its own” sets how much Render does before you see it. Every account starts on “Hands-off”, the recommended level, and you can change it any time:
Hands-off (recommended)Render acts, then shows you what it did. Search clean-ups, paused searches, new ads and bidding steps go ahead, and each one is listed on the Changes tab, most with “Undo”.
Ask me before new ads go liveEverything else runs on its own. New ads (fresh headlines, and fixes for an ad Google turned down) wait in Needs you. Search clean-ups, paused searches and bidding steps go ahead.
Ask me before every changeEach one waits for your OK. Search clean-ups, paused searches, new ads and bidding steps each wait in Needs you for “Approve” or “Decline”.
