Custom Sum based on matching column values

[Bokchoy]

Hi All,

I have a single table where all sales records are kept. 

there are 2 types of sales records in this table. Primary sales record have a [Main] attribute of "M", and sub-records have a [Main] attribute of "S". Primary Sales records can contain many sub-records.

unfortunately all these records are kept on a single table and the [cost] of primary records are missing.

I need to manually calculate the [cost] of primary records by suming up all sub-records. sub-records have the same [date],[user_id] and [type] as the primary record. (see exmaple below)

How can i write this measure as a new column

[PhilipTreacy · Accepted solution]

Hi @Bokchoy 

Use this to create a new column

Col Cost = CALCULATE(SUM([Cost]), FILTER('Table', 'Table'[Date] = EARLIER('Table'[Date])  && 'Table'[user_id] = EARLIER('Table'[user_id]) && 'Table'[Type] = EARLIER('Table'[Type])))

Regards

Phil

[Bokchoy]

Thank you sir, works perfectly 🙂

[PhilipTreacy]

Hi @Bokchoy 

Download example PBIX file

Use this measure

MCost = CALCULATE(SUMX('Table', [Cost]), FILTER(ALL('Table'), 'Table'[Date] = MAX('Table'[Date]) && 'Table'[user_id] = MAX('Table'[user_id]) && 'Table'[Type] = MAX('Table'[Type])))

regards

Phil

[Bokchoy]

Hi Philip, 
This works perfect as a measure, but it doesnt seem to work as a custom column. 
is there a way to achieve the same result while creating a new column?