I am trying to do Something apparently very simple, but I don't get it : I would like to create a google web app, in wich the user write some text, and when he clicks on a button, the text goes into a Google Sheet.
Then, I would like to do also the contrairy : when the user click on a other button of the google web app, he can see what is written in a cell of the google sheet
My biggest problem is that i just don't know how to do the connexion between the webb app and the sheet, and how to use it.
Can you help me ? Thanks