Your client has a documentary film coming out next month. They have three separate 30-second promo videos and want to identify which ad viewers watch to the end most often. To prioritize showing that ad, what type of video creative optimization would you use in Display & Video 360?

To identify and prioritize the video that viewers watch to the end most often, you should select Optimize for completions because this setting specifically uses Display & Video 360’s machine learning to favor the creative with the highest Video Completion Rate (VCR). While options like optimizing for clicks or conversions focus on lower-funnel actions, optimization for completions is designed for brand awareness and engagement, ensuring that the majority of your budget is shifted toward the 30-second promo that successfully keeps the audience's attention until the very last frame. This automated rotation ensures your most "sticky" content receives the highest frequency, maximizing the impact of the documentary's storytelling before its release.