You'll need to provide more information. When you say you're getting an
error message, does this mean that you aren't even able to select the column?
Or is the error coming from your Conditional Formatting formula? What is
the error message? It would also be helpful if you provided an example of
how you want your formatting to appear, and what conditions should trigger it.

"Patti F" wrote:

How can I format an entire column using conditional format? I keep getting an
error message when I choose the column.