I created a sub that is able to undo a macro for me, by creating a copy of the original format then deleting the latest copy and retrieve the old copy back. When I am backing up that particular sheet I give it a different name. Then, when running the macro that I want to execute it cannot recognise anymore that copy that was created as it cannot identify it as an existing worksheet (RunTime Error '9').
What should I do to address this?
What should I do to address this?