As you start developing functionality in your macros and custom functions, inevitably you'll encounter problems—procedures that don't work or don't work as you expect them to, or performance issues that make some tasks take longer than you think they should. Fortunately, there are many tools and strategies you can employ to improve your VBA code.

Recorded macros typically run when the user chooses to run them, and then they play back the same way each time they run. However, you may want to make your macros more flexible and diverse, pausing to allow the user to select various options regarding how the macro should run. Or you might want to make some macros even more automatic; for example, running anytime the user changes the value in a particular cell, or every time a workbook is first opened. In this lesson, you'll examine various ways to control how and when macros run.

You'll wrap things up and then validate what you've learned in this course by taking an assessment.