If, then, message, exit sub

[sb003848]

Hello,

I'm trying to figure out how to tell a macro that if cell A1 is empty, to show a message box saying "Cell A1 is empty and needs to be filled out" and then stop the macro.

I already have the following to stop the macro if the cell is empty but what do I need to add for the message box?
If Range("A1") = "" Then Exit Sub

Thanks!

 

[sb003848]

Wow, you know your stuff.

Thanks a million!!!