Based on the information in the knowledge sources, Mixpanel’s UI provides robust options for aggregating properties at the user level (e.g., “distinct count of parameter_id per user”), but it does not natively support the same type of aggregation at the session level—specifically, “distinct count of parameter_id per session”—as a built-in computed property or measurement.
What’s available:
- You can analyze session metrics using “Session Start” and “Session End” events, and break down or filter by session properties such as Session Duration, Session Event Count, etc. However, these session properties do not include a distinct count of a custom event property (like parameter_id) within each session by default Session Properties.
- Mixpanel allows you to aggregate properties per user (e.g., sum, average, distinct count per user) and analyze distributions, but this is scoped to users, not sessions Aggregate Property per User.
- You can break down session events by properties inherited from the first event in the session, but this does not provide a per-session distinct count of a property across all events in that session.
What’s not available:
- There is no direct way in the current Mixpanel UI to compute and analyze the distinct count of a property (like parameter_id) per session, as you can at the user level. The available aggregations for sessions do not include custom per-session computed properties Measurements.
Possible workaround:
- The knowledge sources do not describe a built-in workaround for this use case. One potential (but manual) approach would be to pre-compute the distinct count of parameter_id per session in your data pipeline before sending the data to Mixpanel, and then attach this as a property to your “Session End” event. This way, you could analyze the distribution of this value in Mixpanel. However, this requires changes outside of Mixpanel and is not supported natively in the UI.
Summary:
I'm sorry, but there is currently no way in the Mixpanel UI to compute a distinct count of a property per session in the same way you can per user. The knowledge sources do not mention a built-in feature or workaround for this scenario within Mixpanel itself. If this is a critical need, you may need to handle the computation before data ingestion or reach out to Mixpanel support for potential feature requests or updates Session Properties Aggregate Property per User.
