As a PM for Instagram Stories, there are several key metrics that I would use to measure success. Firstly, I would look at the number of daily active users (DAUs) for Instagram Stories, as this is a clear indicator of how engaged our audience is with the feature. By tracking changes in DAUs over time, we can gain insights into what aspects of Stories are resonating with users and where we may need to make improvements. Another important metric to consider is the completion rate of Stories. This refers to the percentage of users who view all of the content in a given Story. A high completion rate indicates that users are finding the content engaging and are more likely to come back to view future Stories. In addition to these metrics, I would also track user engagement with specific features of Stories, such as the use of stickers, polls, and other interactive elements. This data can help us identify which features are most popular and inform future development efforts. Overall, the key to measuring success for Instagram Stories is to focus on metrics that are directly tied to user engagement and satisfaction. By tracking these metrics over time and making data-driven decisions, we can continue to improve the user experience and drive growth for the platform.