Checking the values of a column in two rows based on other column criteria

[cbolling]

I have a DimDate[QuarterKey] column and I need to add in to the blank section a place to ensure the quarter matches in two dates.

FullQTR = IF(DATEDIFF(DimDate[LastSaleDate],DimDate[DateKey],MONTH) = -3 && [FILL IN HERE] && DimDate[LastSaleDateOrPriorFilter] = "YES", "YES", "NO")

[mahoneypat]

This is a different approach, but I believe it does what you need.  It return blank until the end of the current quarter is reached.

Sale Not This Quarter =
VAR thisquarterstart =
    DATE ( YEAR ( TODAY () ), FLOOR ( MONTH ( TODAY () ) - 1, 3 ) + 1, 1 )
RETURN
    IF ( MAX ( 'Date'[Date] ) < thisquarterstart, [Total Sales], BLANK () )

If this works for you, please mark it as the solution.  Kudos are appreciated too.  Please let me know if not.

Regards,

Pat

[cbolling]

For Example: It's July right now. I want sales data in July to be excluded, and sales data in August to be excluded, and sales data in september to be excluded until the sales data in October comes in.