FKrauss

function onOpen(){
  // example send for Sheets
  sendGAMP("UA-XXXX-1", SpreadsheetApp.getActiveSpreadsheet().getUrl());
  
  // example send for Documents
  //sendGAMP("UA-XXXX-1", DocumentApp.getActiveDocument().getUrl());
  
  // example send for Forms *NOTE* getUrl not implemented yet in New Sheets
  //sendGAMP("UA-XXXX-1", FormApp.getActiveForm().getUrl());
}