Date Validation

[FJMD1003]

Hi,

I'm looking to populate a cell (A2) with a different cell's value (A1) on a quarterly basis.

I currently have an IF formula running using a month reference (A3) (which is auto updated by a data base) to populate the cell A2 which looks like this (for Q1):

=IF(A3=DATEVALUE("March-11"),A1,"")

Is there any way I can get the formula to "freeze" (i.e. not update) as soon as the March data has been populated? This is because the A1 cell it refers to is updated monthly, and I want to maintain an historic view of the data I've gathered e.g. if I can't take a snapshot of the data in A1 in March, the cell value will be lost come April.

So: a formula that references a cell whilst in that month, then freezes that value when the next month begins.

Any help greatly appreciated - it's pretty urgent!

Thanks,

Fred

 

[Andrew Poulsom]

Is there any way I can get the formula to "freeze" (i.e. not update) as soon as the March data has been populated?

Only by creating a circular reference:

=IF(A3=DATEVALUE("March-11"),A1,A2)

 

[FJMD1003]

Thanks Andrew - again you've helped a great deal!

Fred