how to make DATEADD function work with fiscal calendar

[Jane689]

how do i modify below dax formula to give me correct result for fiscal calendar which starts from Feb and ends in JAN

last month sales = Calculate(sum(sales),DATEADD(Date['fisc_month'],-1,MONTH)

Above formula when used gives me last month sales for FY23 Feb = sales for FY23 Jan which is wrong

[Greg_Deckler]

@Jane689 Most DAX Time "Intelligence" functions are brain dead regarding fiscal calendars. There are multiple ways of accomplishing this but generally the best approach is a good fiscal calendar table. Something with offsets like what Melissa de Korte has put together. Extended Date Table (Power Query M function) - Power Query / M Code Showcase - Enterprise DNA Forum

Also, maybe some of this will help: You may find this helpful - https://community.powerbi.com/t5/Community-Blog/To-bleep-With-Time-Intelligence/ba-p/1260000

Also, see if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.

https://community.powerbi.com/t5/Quick-Measures-Gallery/Time-Intelligence-quot-The-Hard-Way-quot-TIT...