On Mar 20, 11:53 pm, Sean wrote:
I am trying to not allow any values to be typed in a row if the last column
in that row has the word "COMPLETED" in it. the word completed is linked to
another sheet but it does display the exact word on this sheet with a =cell
formula between sheets.

Let's say last column is column E. Select range you want to validate
and in Data Validation dialog under Costom enter this formula:

=IF($E1="COMPLETED";ISBLANK(A1);NOT(ISBLANK(A1)))

It will not alow user to enter text or value in cell after "COMPLETED"
is in E1, but it still will be posible to delete values or text from
cells.

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Regards,
Mladen
http://excelancije.bloger.hr