Are these 2 different cells specific cells? Or are they from cell ranges? You
might be able to use data validation, but would need a better idea of what
cells (or ranges), you are working with.
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** John C **

"Lucy" wrote:

I need an alert that shows me when i have putin the same data in two
different cells in two different worksheet within one book. Is there any such
thing and is so how do i put it in place?

Thanks