Why use App Script? App Script let's you do more with Google, all on a Javascript platform in the cloud. You can use Google Spreadsheet, Google Calendar, Gmail, Google Form ... Problems When you completed your application and need testing how it works. You click on run button After then you get. Oh my god :( Don't worry about it. You can see button Advanced . Please click on it Click Go to Testing (unsafe) --> Allow Done. Happy coding :)
In God we trust, all others brings data !!