In Google App campaigns, machine learning does the heavy lifting — deciding which user sees which ad, at what time, on which platform. But this doesn’t mean your role is passive. To pass the Google Ads Apps Certification and run high-performing campaigns, you must understand what Google automates , what you still control, and how to feed the system with the right inputs . This article explains how machine learning powers App campaigns and how to structure your campaigns for success — and certification. Google’s machine learning models automatically: This process is called auction-time optimization , and it happens for each individual ad impression . Without conversion tracking: