When setting goals and success metrics for Facebook video, it's important to consider both the user experience and the business objectives. Some possible goals for Facebook video could include increasing user engagement, improving video quality, and increasing the amount of time users spend watching videos. Success metrics for these goals could include metrics such as views, engagement rates, watch time, and video quality ratings. Another potential goal for Facebook video could be increasing revenue for the company. Success metrics for this goal could include metrics such as ad revenue generated from video views, conversion rates for sponsored content, and overall revenue growth. Ultimately, the specific goals and success metrics for Facebook video will depend on the company's overall strategic objectives and the needs of its user base. As a product manager, it's important to be able to identify these goals and metrics, and to work with cross-functional teams to develop and execute a plan to achieve them.