Add that stipulation to your CF formula.

For example:
=AND(A1<"",A1<B1)
--
HTH,

RD

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"Vahe" wrote in message
...
I have a range of cells where I am using conditional formatting. I would
like to "turn off" or "deactivate" conditional formatting while the
cell(s)
are empty.

I only want conditional formatting to apply where the cells are NOT null.

Thanks