LAST DATE

[Oros]

Hello,

I have a What-if parameter set to increment every 7 days. 

For example, selected is LAST 7 DAYS from today’s date (August 21-27).

Goal: If a product does not have any sales within this selected parameter, the value should be = zero (0).

Problem: However, a “last 7-day period” value still shows up based on the “LAST” sale.  If the last sale was a far back in March, the value shows the last-7 day sales in March.

Is there something missing in the formula below?  Is it a problem with the DATESINPERIOD and LASTDATE?

Thanks.

---------------------------------

Parameter = GENERATESERIES(7, 365, 7)

Parameter Value = SELECTEDVALUE('Parameter'[Parameter], 7)

----------------------------------------

RollingSum =

   VAR NumDays = Parameter[Parameter Value]

   VAR RollingSum =

         CALCULATE(

         SUM('SALES_TABLE'[Invoiced QTY]),

         DATESINPERIOD('SALES_TABLE'[Postingdate], LASTDATE ('SALES_TABLE'[Postingdate]),-Parameter[Parameter Value],DAY)

         )

         RETURN

         RollingSum

------------------------------------------

[Oros]

Hi @parry2k ,

Thank you for your quick reply.

Unfortunately it is still showing the very old 'last 7-day' sales instead of the absolute last 7-day sales from today.

[Oros]

Hi @parry2k ,

My mistake...your solution actually works.  Thanks a lot!!!

[parry2k · Accepted solution]

@Oros usually for time intelligence you should use a calendar table, and you can easily create one from my blog post here Create a basic Date table in your data model for Time Intelligence calculations | PeryTUS IT Solutio...

but you can change your measure like this and try

RollingSum =

   VAR NumDays = Parameter[Parameter Value]

   VAR RollingSum =

        

         CALCULATE(

        

         SUM('SALES_TABLE'[Invoiced QTY]),

        

         DATESINPERIOD('SALES_TABLE'[Postingdate], TODAY(),-Parameter[Parameter Value],DAY)

         )

        

         RETURN

         RollingSum

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