MAX date based on another column

[learner03]

I have a column with values A & B and a date column which show when the data was updated for A & B.
I need to make a new calculated column, which shows when A was last updated and when B was last updated.

I am using below but it says circlar dependecy-

"

VAR CurrentValue =table1[A&B]

RETURN

    IF(

        CurrentValue = "A",

        CALCULATE(MAXX(FILTER('table1', table1[A&B] = "A" && NOT(ISBLANK('table1[Date update]))), 'table1[Date update])),

        IF(

            CurrentValue = "IFC",

            CALCULATE(MAXX(FILTER('table 1','table1[A&B]= "B" && NOT(ISBLANK(table1[Date update]))), 'table1[Date update])),

            BLANK()

        )

    )

"

[Anonymous · Accepted solution]

Hi @learner03 ,

It could be a DAX measure that is causing the circular dependency.
I tried to create data to reproduce your problem, here are my test steps：
Test data

Apply your calculate column

Here's my modification of this dax to achieve your goal

LastUpdateDate = 
CALCULATE(
    MAX('Table'[Date update]),
    FILTER(
        'Table',
        'Table'[A&B] = EARLIER('Table'[A&B])
        && NOT(ISBLANK('Table'[Date update]))
    )
)

Final output

You can refer to this link for more information on cyclic dependencies
Avoiding circular dependency errors in DAX - SQLBI

Best regards,

Albert He

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly