#Invalid data type, year function

JLK ✭✭
edited 02/01/23 in Formulas and Functions

Hello, I would like to return the year from a MM/DD/YY cell.

Here is the formula I'm using:

I have confirmed that the "event start date no time" is column type date:

But I'm still getting an #Invalid Data Type as the result.

Here is my guess as to why:

The "event Start Date No Time" column is a "helper" column which I used to convert the start date with time column to just a start date, so that I could preserve the time in the previous column. (if I convert that column to date type directly, I loose the time value, which I do need). I want this to remain a column function so that as I add data to this sheet it continues to populate, but I also need for this year formula to pull automatically. Any ideas for how I can get this to work?




  • JLK
    JLK ✭✭
    edited 02/01/23
  • DKazatsky
    DKazatsky ✭✭✭

    Hi @JLK ,

    What is the column type for the Year column? I have replicated using the same formula and am not getting an error. I have the Year column set as Text/Number.

  • JLK
    JLK ✭✭
    edited 02/01/23

    Yes, the Year column is Text/Number.

    I think the issue is that my Date column is already a fx.

    I needed a helper row to preserve the time in my original date column, since when you convert to a date data type, you loose the time info.

    So, the question is, is there a formula that will allow you to pull the value of the cell rather than the formula that is in that cell?


  • DKazatsky
    DKazatsky ✭✭✭

    I have the same situation with no issue - this is the setup I used.

    ColumnA = CreatedDate type

    ColumnB = Date type with this column formula: =DATEONLY([ColumnA]@row)

    ColumnC = Text/Number type with this column formula: =YEAR([ColumnB]@row)

    Hope this helps,


  • JLK
    JLK ✭✭
    edited 02/01/23

    Hi Dave,

    Thanks for that. It makes sense that that would work but I'm still getting an #INVALID DATA TYPE

    First column and second column are both Date type, and third column is text/number. I have no idea why this isn't working.

    I was able to get the formula to work by copying and pasting the entire column, but this is not something that is automated, so each time I add data to this sheet, I'll have to manualy copy and past to get this year formula to work which is obviously not idea.


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