Creating a path exploration visual in Power BI like that that exists in GA4 (decision tree)

[stino123]

I am creating a dashboard for an app that we have created. in the events of this app we have specific users and users will navigate through the app how they see fit. What the stakeholders wish to see is how users navigate through the app. What is the second event they are likely to trigger? If they come in via a notification what is the next step related to the notificiation and the step beyond that. I created a custom column for the first following step and I could do so for the next step but that would make way too many calculated columns which would make my model super slow. Is there a best practice at approaching this. I have included the visual from GA4 as my ideal reference point. It looks allot like a decision tree but you cannot use a decision tree if the order is stored in one column?

Thanks,

[stino123 · Accepted solution]

The fix was creating a ranking based on a screen view event then creating 5 seperate calculated columns that identified the 1st, 2nd, 3rd... event as such. The second event needs to be inline with the non blank of the first event otherwise path exploration does not work. see below dax:

1st event = IF('4. Fact_events'[RankScreenViews]=1,'4. Fact_events'[screen_name],BLANK())

2nd event =

VAR FirstScreenViewValue = '4. Fact_events'[1st event]

VAR CurrentSessionID = '4. Fact_events'[session_id]

VAR SecondScreenViewValue =

    CALCULATE(

        MAX('4. Fact_events'[screen_name]),

        FILTER(

            '4. Fact_events',

            '4. Fact_events'[event_name] = "screen_view" &&

            '4. Fact_events'[RankScreenViews] = 2 &&

            '4. Fact_events'[session_id] = CurrentSessionID

        )

    )

RETURN

    IF(

        ISBLANK(FirstScreenViewValue),

        BLANK(),

        SecondScreenViewValue

    )

[arv_]

Hi there, sorry I'm still new at this - I have loaded my GA4 dataset to Power BI with the following dimensions - Date, Event Name, Country, and several metrics. How do I proceed with the first step (splitting Event Name into multiple sequential columns / ranking screen view) ? Thank you 🙂

[lbendlin]

Use a Decomposition Tree visual or a Sankey visual.

[stino123]

@lbendlin Decomposition tree won't work. you would need a column for first, second, third activity? same applies to a Sankey visual

[lbendlin]

No, Sankey works different. Only needs two columns.

[stino123]

@lbendlin This does not work because again you would need a measure for each next measure. Like the tree diagram it needs a new category each time...

[stino123]

Further, You can have a duplicate dimension in a sankey visual which would be needed if you need to see each event.