I am creating a macro that will run an application.
The spreadsheet will have data input into columns A - L and then the user will hit a button to run the macro.
What I would like to add as a part of this button/macro is a check function.
If Column T has any negative numbers in it, then the user has possibly entered data incorrectly.
I would like to have a box pop saying something to the effect of "negative numbers, is this correct" Then let them choose yes or no etc. If yes, then continue to run the macro. If no then stop the macro.