Last corresponding date on previous month, [Doubt]

bolabuga ,

Actually there's some difference, I haven't make complete test.

[PM Date] measure is equal to dax below:

PM Date = 
CALCULATE (
    MAX  ( 'Date'[Date] ),
    ALL ( 'Date' ),
    FILTER (
        ALL ( 'Date'[MonthDayNumber] ),
        'Date'[MonthDayNumber] <= EARLIER ( 'Date'[MonthDayNumber] )
            || ('Date'[MonthDayNumber] = EARLIER ( 'Date'[MonthDays] ) && 'DATE'[monthdays] = EARLIER( 'DATE'[MonthDayNumber]) )
    ),
    FILTER (
        ALL ( 'Date'[YearMonthNumber] ),
        'Date'[YearMonthNumber] = EARLIER ( 'Date'[YearMonthNumber] ) - 1
    )
)

And [PM Date without earlier] is equal to dax below:

PM Date (without earliers) = 
CALCULATE (
    MAX  ( 'Date'[Date] ),
    ALL ( 'Date' ),
    FILTER (
        ALL ( 'Date'[MonthDayNumber] ),
        'Date'[MonthDayNumber] <= EARLIER ( 'Date'[MonthDayNumber] )
            || 'Date'[MonthDayNumber] = EARLIER('Date'[MonthDays])
    ),
    FILTER (
        ALL ( 'Date'[YearMonthNumber] ),
        'Date'[YearMonthNumber] = EARLIER ( 'Date'[YearMonthNumber] ) - 1
    )
)

Community Support Team _ Jimmy Tao

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