Hi, yes the integration is based on the event_property $distinct_id, as event data is immutable and not all users will have a $distinct_id user property (only identified users have user properties $set on their profile).
For this, you can leverage the
additional event property feature to facilitate the mapping. However, it might be better long term to just use one idenfitier
For context, the integration is built on the JQL API as it allows the integration to query the raw data, this API is placed in maintenance mode, meaning Mixpanel will no longer invest in it, but it is still active.
When you run the query in JQL what values are you seeing? Asking because the funnels report queries the formatted data, where JQL queries the raw data and the integration is built on JQL so this will be the best source of truth.
What values are you seeing when you run the query in JQL?