Google Apps Script – add a label into gmail account – part 019. By Cătălin George Feștilă | 23/06/2019 0 CommentUsing this script, you can add a label to your Gmail account.JavaScript function create_label(new_label) { GmailApp.createLabel(new_label) }1234function create_label(new_label){ GmailApp.createLabel(new_label)}The GmailApp don’t let you to use the category feature.