12 Month Sales

[jausting]

Hi

I have created a measure to sum sales over past 12 months, before August 2017

I want the measure to calculate the previous 12 month sales from a date that is selected in a slicer (Dates Table0

Measure = CALCULATE(sum(EOM_STK[Sales]), 'EOM_STK'[perioddate]<=DATE(2017, 08, 1) && 'EOM_STK'[perioddate]>=DATE(2016, 09, 1))

Dates table

Year   Month  FilterDate

2017  01         2017-01-01

2017  02         2017-02-01

etc

if I substitue the dates for the date slicer, I get the error message that the expression contains multiple columns but only a single column can be used in a true/false expression. What am I doing wrong?

[v-chuncz-msft]

@jausting,

You may add FILTER Function to the formula.

https://www.sqlbi.com/articles/filter-arguments-in-calculate/

[jausting]

Hi,

Apologies for the delay in responding. Filter was the solution, just wasnt sure how to use it.

This was my solution for the sales over 12 months, I had a slicer to select the end period

var curDateStr = CALCULATE ( MIN ( Dates2[FilterDate] ), ALLEXCEPT ( Dates2, Dates2[FilterDate] ) )
var curDate = DATE(LEFT(curDateStr,4),VALUE(MID(curDateStr,6,2)),RIGHT(curDateStr,1))
VAR DateAddAlternative = EDATE(curDate,-MonthsToLookBack)
return
CALCULATE ( SUM ( 'EOM_STK'[SOH] ), FILTER(EOM_STK,
                                                    EOM_STK[perioddate]=curDate
))