Date issues on a custom date

[Anonymous]

Hello,

I have issues to associate dates correctly. I don't really know how to workaround this.
Note: the second table is a view and i can modify it for my needs.

I have dimension date table as follow:


I have an other table with products and dates like this (i show you only dates here):


I made a relation between them:


I want to count customer by entity for a specific report period, so i made a segment on the Generic_Period.
I created mesures for this segment:

Customers = 
CALCULATE(DISTINCTCOUNT('Customers'[Customer]), 
filter(Customers, Customers[Generic_Period] = DATEADD(Customers[Generic_Period],0,MONTH)))

Customers M-1 = 
CALCULATE(DISTINCTCOUNT('Customers'[Customer]), 
filter(Customers, Customers[Generic_Period] = DATEADD(Customers[Generic_Period],-1,MONTH)))

The first probleme is Q-1 returns 0 values :


The second problem, It doesn't work if the day number isn't the same as previous month.
If i select 30/09/2019 it will not retrieve the 31/10/2019 even with end of month -1 like this :

ENDOFMONTH(DATEADD(Subscription_Partner_by_month[Generic_Period],-1,MONTH))

Thanks a lot for your time.

[Anonymous]

even with this value, now it work in a card but my M-1 column is still empty.

EOMONTH(ALLSELECTED(Customers[Generic_Period]),-1)

[amitchandak]

@Anonymous , the requirement is not very clear.

dateadd should be used on the date table

example

QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(('Date'[Date])))
Last QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],-1,QUARTER)))

Last QUARTER Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD( ENDOFQUARTER(dateadd('Date'[Date],-1,QUARTER))))
Last QUARTER Sales = CALCULATE(SUM(Sales[Sales Amount]),PREVIOUSQUARTER(('Date'[Date])))

Last to last QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],-2,QUARTER)))
Next QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],1,QUARTER)))
Last year same QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],-1,Year)))
Last year same QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(ENDOFQUARTER(dateadd('Date'[Date],-1,Year))))
trailing QTR = CALCULATE(SUM(Sales[Sales Amount]),dateadd('Date'[Date],-1,QUARTER))
trailing 4 QTR = CALCULATE(SUM(Sales[Sales Amount]),dateadd('Date'[Date],-4,QUARTER))

[Anonymous]

Hello @amitchandak ,

you reply me each time and i thank you for that but CALCULATE(SUM doesn,'t work in my case as my field is a string !

I have a date column in my data table wich i want to link with my date table.
I want to retrieve all the data wich corresponding to the generic_period colum. I would have the same for Month-1, Month-2 etc ...

For exemple: if i choose in my report segment period 30/09/2019, i would also retrieve data from the previous report period (31/08/2019), but it is blank in my result table.

This seems not work ? i am doing something wrong here ? How could i handle it ?

test Q-1 = 
CALCULATE(DISTINCTCOUNT('Customers'[Customer]),
filter('Date', ENDOFMONTH(DATEADD('Date'[Date],-1,MONTH)) IN (ALLSELECTED(Customers[Generic_Period])))
)

My date table is generated like this:

Date = CALENDAR(DATE(2018,1,1),DATE(2030,12,31))