You make learning and reading addictive. All eyes fixed on you. Thank you being such a good and trust worthy guide.

I have a data table with 80M records that looks like any other typical Sales Fact with fields like DateID, ProductID, SupplierID,QuantitySold and I am trying to write a DAX calculation that gives me the QuantitySold in past 30/60/90 days.
The catch is if the month is part done (example: April 15th), then this measure should show only until that day as the total at the month level instead of as of last day of the month.
I have tried many ways and finally ended up on this as it was working perfectly:
QtySold_Running30days:=

VAR MaxDate = LASTDATE(FactSales[SaleDt])

RETURN
CALCULATE([QuantitySold],
FILTER(ALL(‘Date’),
‘Date'[Date] > DataMaxDate -30 &&
‘Date'[Date] < DataMaxDate))
Having said that, the reports that have all these 3 measures along with Date / Product and Supplier Attributes is not returning data even with the bare minimum filters.

Thank you very much and will look for from you.

Thank you,
Morgan