Distinct count per day from 2 tables summarized by period

[Christoffer_B]

Hi, 

I'm new to Power BI and are looking to create a report to track product engagement over time.

For that I would need to track active users per day, week & month and compare those with the previous period. I'm having issues creating a formula that can display the distinct count of users PER DAY from the 2 tables.

I'm tracking active users from 2 tables (Feature Click & Page View), 1 user can appear in both tables on the same day, in that case the specific user should only appear as 1 count. 

I've tried using the formula below, but it doesn't seem to "reset" for each day and thereby doesn't allow comparisons to previous periods.

Distinct Count Page & Feature =

 COUNTROWS(

     DISTINCT(

         UNION(

             VALUES(Fact_Platform_Feature_Click[Platform_User_SK]),

             VALUES(Fact_Platform_Page_View[Platform_User_SK])

         )   

     )  

 )

Example data

Table 1:

Table 1

Table 2:

Table 2

Result I'm seeking:

Result i'm seeking

[amitchandak · Accepted solution]

@Christoffer_B , Create a common Date and user tables and join both tables with these two tables.

Now create this measure and plot it with a common date column

measure = Countrows(Distinct(union(Distinct(Table1[User]), Distinct(Table2[User])) ) )

https://amitchandak.medium.com/power-bi-when-i-asked-you-to-create-common-tables-a-quick-dax-solutio...

[Christoffer_B]

Thanks @amitchandak!

This appears to be working exactly how i wanted it to! 🙂