Help with Date variable with Expression

[TecnologiaMV]

We are using a date type variable with range.
Within the range of values, we would like to use an expression to get the previous month, first and last day of the previous month.
Do we have any expression to get these values?

Thanks

[Lech Kulikowski]

Hello,

You can use the DateSerial() function, for example:
DateSerial(Today.Year, Today.Month - 1, Today.Day)

Thank you.