Excel OnChange event

Question

I want to update a cell with the date-time when a value is entered to another one so,

How can i change the value of the B column to the date-time when a value is e

Answer 1

Try using

=IF(A3<>"",IF(B3="",NOW(),B3),"")

The values will be in column A and the time-stamp in column B. Also, you'll have to enable iterative calculations in the options.

Note that this will generate a time-stamp only when a value is first entered in Column A. To use this, the way you want, instead of normally editing a cell's value, you'll have to delete it and re-enter a new value.

I fear this is just a work-around and not a complete solution. I'll update this in case I find something more convenient.