Same period of the last month from a filtered measure

[rampapbi]

Hello!

I created a measure that returns sales per day for certain products, for a certain period of time:

Sales-Campaign = 
    CALCULATE(
      [Sales], 
      FILTER( AD_RMPITENSPEDIDOS, AD_RMPITENSPEDIDOS[CODPROD] in VALUES( campaign_itens[Cod Rampap] ) ),
      DATESBETWEEN( _Calendario[Data], SELECTEDVALUE( campaigns[camp_start]) , SELECTEDVALUE( campanhas[camp_end] ) )
    )

 Is it possible to calculate sales for the same period of days and same products in the previous month?

Desired result:

Date	Sales-Campaign	Sales-Campaign-LM
02/01/2023	3000	4500
02/02/2023	5700	2000

[Ashish_Mathur]

Hi,

It will depend upon the structure of underlying data source.  Share data in a format that can be pasted in an MS Excel file.

[halfglassdarkly]

You could use: 

Sales-Campaign-Offset = 
    CALCULATE(
      [Sales], 
      FILTER( AD_RMPITENSPEDIDOS, AD_RMPITENSPEDIDOS[CODPROD] in VALUES( campaign_itens[Cod Rampap] ) ),
      DATESBETWEEN( _Calendario[Data], EDATE(SELECTEDVALUE( campaigns[camp_start])-1) , EDATE(SELECTEDVALUE( campanhas[camp_end] )-1) )
    )

 But that would still throw an error if your campaign start or end date doesn't exist in the previous month (e.g. if your campaign end date is 31 March EDATE(SELECTEDVALUE( campanhas[camp_end] )-1) is going to throw an error. You could try dealing with that like this, which will sub your selected start and end date for the last day of the previous month if an error is encountered:

Sales-Campaign-Offset = 
CALCULATE([Sales], 
      FILTER( AD_RMPITENSPEDIDOS, AD_RMPITENSPEDIDOS[CODPROD] in VALUES( campaign_itens[Cod Rampap] ) ),
      DATESBETWEEN( _Calendario[Data], 

      IFERROR(EDATE(SELECTEDVALUE(campaigns[camp_start])-1),EODATE(SELECTEDVALUE( 
      campaigns[camp_start])-1)) , 

      IFERROR(EDATE(SELECTEDVALUE(campanhas[camp_end])-1),EODATE(SELECTEDVALUE( 
      campanhas[camp_end])-1)))
)