How to register a cell in a Text/Number column as a date in a formula?
I have a formula from Excel that I'm trying to duplicate in SmartSheet. The formula references row1 which is a monthyear (eg JAN20). This is a duplicate for the column name so it can be interacted with in a formula.
So there are 2 elements here that I need help with.
 Can treat a cell from a text/number column as a Date?
 If so, how in Smartsheets can I treat the MonthYear as end of the month like Excel's EOMONTH function?
Here is my original formula from Excel.
=SUMIFS(Invoices!$I$7:$I$11914,Invoices!$B$7:$B$11914,Invoices!$C34,Invoices!$K$7:$K$11914,">="&AT$32,Invoices!$K$7:$K$11914,"<="&EOMONTH(AT$32,0))
Where AT32 is the MonthYear I'm trying to reference.
Here is my first attempt in SmartSheet that isn't working for many reasons.
=SUMIFS({Invoices Range 2}, {Invoices Range 1}, [Tracking ID]@row, [{Invoices Range 3},"<=&EOMONTH([ACT1]1,0)
And a snippit of my sheet so you can see how i'm trying to make it reflect Row1.
Thank you for the help!
Best Answer

I believe you typed in row 1: "Jan20" or "Feb20" and so on...
Those doesn't means much, so you're gonna have to use some long nested IF statements to convert this to a number so you can use that in a date. So I would suggest to replace the "Jan20" by 01/20 which would be easier to work with.
Also, according to your excel formula, you seem to want to calculate the SUM during a specific month. Then you'd rather go with the MONTH function, instead of an EOMONTH that doesn't exists in Smartsheet.
Hope it helped!
Answers

You will need to either use a date column or use the DATE function to allow Smartsheet to interpret the text as a date, see https://help.smartsheet.com/function/date
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I believe you typed in row 1: "Jan20" or "Feb20" and so on...
Those doesn't means much, so you're gonna have to use some long nested IF statements to convert this to a number so you can use that in a date. So I would suggest to replace the "Jan20" by 01/20 which would be easier to work with.
Also, according to your excel formula, you seem to want to calculate the SUM during a specific month. Then you'd rather go with the MONTH function, instead of an EOMONTH that doesn't exists in Smartsheet.
Hope it helped!
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