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Anni_E_Lehtinen's avatar
Anni_E_Lehtinen
Frequent Visitor
8 years ago
Solved

Previous month function that takes January into consideration

Hi!

 

I have been trying to figure out a previous month- DAX function that takes into account that in January previous month's year is not the same as the current month's year. 

 

I am currently using this and this does work when it is not January:

 

IsPreviousMonth = IF(AND(MONTH(MarketingMonthly[Date]) =MONTH(TODAY()) -1,YEAR(MarketingMonthly[Date]) =YEAR(TODAY())),"Previous","Other")

 

However, in January it will be broken since previous month's year should be year -1 and not the current year.

 

Does anybody know how to do this? Thank you in advance!

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  • Anni_E_Lehtinen's avatar
    Anni_E_Lehtinen
    8 years ago

    Thanks sdjensen! I actually just figured this out like this:

     

    IsPreviousMonth = IF(MarketingMonthly[YearMonth]=FORMAT(DATE(YEAR(TODAY()),MONTH(TODAY())-1,DAY(TODAY())),"YYYY/MM"),"Previous","Other")

     

    Problem solved :) 

2 Replies

  • sdjensen's avatar
    sdjensen
    Solution Sage
    8 years ago

    Add an IF to the calculation that check if the month is january - if true handle the calculation differently else do what do now.

    • Anni_E_Lehtinen's avatar
      Anni_E_Lehtinen
      Frequent Visitor
      8 years ago

      Thanks sdjensen! I actually just figured this out like this:

       

      IsPreviousMonth = IF(MarketingMonthly[YearMonth]=FORMAT(DATE(YEAR(TODAY()),MONTH(TODAY())-1,DAY(TODAY())),"YYYY/MM"),"Previous","Other")

       

      Problem solved :)