Two questions today with a similar solution using a VBA Event Handler.
Question 1: Cells O19 and Q19 are mutually exclusive. If someone selects from the validation dropdown in one cell, the other cell should be cleared out.
Question 2: In a certain range where you have to enter large numbers, can Excel add three zeroes to any number you type.
Both of these are solved using the same event handler macro.
Concepts in this video include:
Changing Macro Security to Allow Macros ( 0:30 min )
Change file extension to Allow Macros ( 0:42 min )
Finding the worksheet code pane ( 1:06 min )
Starting a Worksheet_Change macro ( 1:20 min )
Using an IF Statement in VBA to check what cell just changed ( 1:50 min )
Why Target.Address requires dollar...