Until now, you have been using GAS's basic services, such as
ContactsApp. Now it is time to learn how to enable advanced services.
In this task, we are going to use a Calendar service, which is an advanced service, so we have to enable it before using it.
In the script editor, click on Resources, and then on Advanced Google services…, and a pop-up window will open:
In the Advanced Google Services pop-up window, all the GAS advanced services will be listed. Look for the Calendar API service, select the latest version (it is selected by default), and then enable it if is not already enabled. In the following ...