I would like to have a warning message pop-up when a dollar value is exceeded.
When a user enters a value of $2500 or more in a cell, I would like to have
a message display that tells them they must have certain documents to backup
that value.

Is there a way to do this? All I can find is in DATA - Validation - INPUT
MESSAGE.
It comes up as soon as you select the cell, not what I want.

Thanks in advance.