Measure works on values of slicer but 1 fails

[eliasayyy]

hello everyone is have caelndar table,

i have a custom date table to allow me to choose between "last 30 days" , "last 60 days" , "last 90 days" , "current year" , "custom"

i made 2 measures

impressions = sum(impressions)

splm impressions = 

SUMX(VALUES('Calendar'[Date]),CALCULATE([impressions] ,DATEADD('Calendar'[Date],-1,MONTH)))

it works well i get what i want but when i add the filter , 

it doesnt work on 30 days but work on more than 30 days and first month is empty

here i seelct 60

as you see may is empty but it works from june and so on 

here is no filters

you can see that i indeed have in may splm value and it shouldnt be blank 

can someone help please

[AlanFredes · Accepted solution]

Hi,

This issue is due to the date range filter (in Date Range List PvP) you are using. When selecting last 30 days the DAX formula no longer has more than 30 days of history to work with and that is why the "splm impressions" measure is showing up empty. In the other date ranges you mentioned there is more than 1 month of history for the first days but if you look at the tail end of the data you will notice data will start going blank again.
To fix this issue you will need to set the data range you need to calculate and then break the date range filter. Something like this might work:

splm impressions = 

Var Max_Date =MAX('Calendar'[Date])

Var Min_Date = MIN('Calendar'[Date])
RETURN

CALCULATE(

SUMX(VALUES('Calendar'[Date]),CALCULATE([impressions] ,DATESBETWEEN('Calendar'[Date],Min_Date,Max_Date))),

REMOVEFILTERS('Date Range List PvP')
)

Did I answer your question? Mark my post as a solution!

[AlanFredes · Accepted solution]

Hi,

This issue is due to the date range filter (in Date Range List PvP) you are using. When selecting last 30 days the DAX formula no longer has more than 30 days of history to work with and that is why the "splm impressions" measure is showing up empty. In the other date ranges you mentioned there is more than 1 month of history for the first days but if you look at the tail end of the data you will notice data will start going blank again.
To fix this issue you will need to set the data range you need to calculate and then break the date range filter. Something like this might work:

splm impressions = 

Var Max_Date =MAX('Calendar'[Date])

Var Min_Date = MIN('Calendar'[Date])
RETURN

CALCULATE(

SUMX(VALUES('Calendar'[Date]),CALCULATE([impressions] ,DATESBETWEEN('Calendar'[Date],Min_Date,Max_Date))),

REMOVEFILTERS('Date Range List PvP')
)

Did I answer your question? Mark my post as a solution!

[eliasayyy · Accepted solution]

hello yes it worked for me the dates between isnt necessary i just had to add removefilter(date pvp[type])