Get UI SafeSpreadsheetApp.getUi() only exists when a user has the spreadsheet open. Time-driven and many installable triggers are headless — calling…
Confirm a Dangerous Action (Yes/No)Custom menus that Clear, Re-import, or Archive should not fire on a misclick. This thin wrapper around SpreadsheetApp.getUi().alert returns…
HtmlService Template Include HelperSplitting HTML dialogs into Dialog.html + Styles.html + Client.js.html keeps IFRAME UIs maintainable. The classic pattern is a server-side…
