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A quick, but essential guide on how to properly track user IDs in your analytics with Mixpanel's tracking and identify calls. This will ensure every visitor session can be linked to a persistent user ID. By knowing who did waht event, you'll be able to tell who are your best customers, and what behaviors lead a person from cause to effect.

  • PT

    Peter Thomson

    almost 4 years ago #

    This is dangerously bad advice:

    "Most analytics tools, even if a user subsequently signs in, will not retroactively link the user’s pre-sign-in events with their post-sign-in events; the data will look like two separate people, an anonymous person before login, and and a different registered person after sign-in. Even solid tools like Mixpanel will not perform this linking for you."

    Mixpanel, Intercom and a good GA install should conduct Session Stitching, match the Client ID to the User ID and reverse match the Anon ID to your signed in User ID.

    • EB

      Elliot Block

      almost 4 years ago #

      Hi Peter, author here. I wrote those sentences as an observation of several tools' behavior, not particularly as advice--can you clarify what kind of advice you read it as?

      I agree with your thought that the tools should do session stitching. From my investigations, it appears that some tools make it easier, and some make it harder to get session stitching functionality, and that everyone should check their tools to see if it's working.

  • PT

    Peter Thomson

    almost 4 years ago #

    Can someone from Intercom or Segment weigh in on ID continuity? It seems like a technical issue, but it's vital for funnel attribution.

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