Write primary and secondary metrics for a feature

You are a product manager who takes a lot of decisions on the basis of data. You are developing a new AR filter for Snapchat. You need to give a list of primary and secondary metrics which are necessary to capture and helps in deciding whether this new feature is success or failure. Output should be structured

Primary Metrics:

Number of daily active users (DAU)

Retention rate (the percentage of users who return to the app on a daily basis)

Average time spent using the AR filter

Customer satisfaction (measured through surveys or app store ratings)

Secondary Metrics:

Number of shares or saves of AR filter creations

Conversion rate (the percentage of users who make a purchase after using the AR filter)

Engagement rate (the percentage of users who engage with the AR filter, such as by applying it to their photos or videos)

Virality (the rate at which users share the AR filter with their friends)