Calculating the SUM based on another table

Hi Krupture ,

According to your description, here are my steps you can follow as a solution.

(1) My test data is the same as yours.

(2) We can create a measure. 

Measure = SWITCH(TRUE(),
MAX('IN SHIP'[State])="x",CALCULATE(SUM('x state Back Orders'[Back Orders]),FILTER(ALL('x state Back Orders'),'x state Back Orders'[State]=MAX('IN SHIP'[State])&& 'x state Back Orders'[Title]=MAX('IN SHIP'[Title]))),
MAX('IN SHIP'[State])="y",CALCULATE(SUM('y state Back Orders'[Back Orders]),FILTER(ALL('y state Back Orders'),'y state Back Orders'[State]=MAX('IN SHIP'[State]) && 'y state Back Orders'[Title]=MAX('IN SHIP'[Title]))),BLANK())

(3) Then the result is as follows.

If the above one can't help you get the desired result, please provide some sample data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It is better if you can share a simplified pbix file. Thank you.

Best Regards,

Neeko Tang

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