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Show previous month data by expression


I am trying to write an expression that will show the previous month's data of sales.

I have been able to use this formula to show the previous years sales in another table


But when I replace Year with Month it does not bring back any values.

Thanks for helping!

1 Reply

Re: Show previous month data by expression

Create a new field in the script like this

LOAD Date,

    Year(Date) as Year,
    Month(Date) as Month,

   Date(MonthStart(Date), 'MMMYYYY') as MonthYear

FROM ...

And then try this

Sum({<MonthYear={"$(=Date(MonthStart(Max(MonthYear), -1), 'MMMYYYY'))"}, Year, Month>}Sales)