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?

Analysis of Correct Answer(s) - Optimize for completions: This is the correct setting because it directly addresses the client's objective to find which promo video is watched to the end most frequently. When using this optimization with multiple creatives, Display & Video 360's algorithm will analyze the performance of each video and automatically serve the one with the highest video completion rate (VCR) more often. This ensures the most engaging ad is prioritized, maximizing the campaign's effectiveness based on the client's specific goal.

Analysis of Incorrect Options - Optimize for conversions: This option is incorrect because the client's goal is related to ad viewership, not a post-view action like purchasing a ticket or signing up for a newsletter. - Optimize for clicks: This optimization focuses on driving traffic to a website, which is not the client's stated objective. The goal is to measure watch time, not user clicks. - Optimize for time spent on-screen: While this is a valuable engagement metric, it is not as precise as "completions" for the client's goal. Time spent on-screen measures the average duration an ad is visible, but it doesn't specifically identify viewers who finished the entire video.