Whether you are looking to generate custom reports, create functional tables, custom functions, or integrate Sheets with other Google services, Google Apps Script can help you achieve it.

The key to spotting when to create a function in a script is to be thinking ahead all the time. Begin asking yourself, “Today this code works, but what if tomorrow I need to perform this same task a ...

The good news is that you can define custom functions with new behavior if you can code them yourself in Google Apps Script.