多行更新后发送电子邮件

Question

我一直在使用下面的脚本工作正常，但是我想减少它触发的次数。

function sendNotification(event) {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  //var sheet = ss.getSheetByName("Allocation Requests");
  var sheet = ss.getActiveSheet();
  var row = sheet.getActiveRange().getRow();
  var cellvalue = ss.getActiveCell().getValue().toString();
  var emailAdd = "email@yourdomain.com";
  if(event.range.getA1Notation().indexOf("G") > -1 && sheet.getRange("G" + row).getDisplayValue() && emailAdd.length > 1)
  {
    {var confirm = Browser.msgBox('Case Quantity', 'Is this a confirmed amount?', Browser.Buttons.YES_NO); 
  if(confirm!='yes'){return};
     var rowVals = getActiveRowValues(sheet);
     MailApp.sendEmail({
       to: emailAdd,
       subject: "Allocation Request - " + rowVals.quantity + " cases on " + rowVals.date,
       htmlBody: "There has been a new allocation request from " + rowVals.name + " in the " + rowVals.team + " team.<br \> <br \> " 
       + "<table border = \"1\" cellpadding=\"10\" cellspacing=\"0\"><tr><th>Issuing Depot</th><th>Delivery Date</th><th>Case Quantity</th></tr><tr><td>"+rowVals.depot+"</td><td>"+rowVals.date+"</td><td>"+rowVals.quantity+"</td></tr></table>" 

      });
  }
}


/**
* get values of depot, date, quantity and name from their respective cells.
* @returns    {Object.<string, string>}
*/
function getActiveRowValues(sheet){
  var cellRow = sheet.getActiveRange().getRow();
  // get depot value
  var depotCell = sheet.getRange("E" + cellRow);
  var depot = depotCell.getDisplayValue();
  // get date value
  var dateCell = sheet.getRange("F" + cellRow);
  var date = dateCell.getDisplayValue();
  // get quantity value
  var quantCell = sheet.getRange("G" + cellRow);
  var quant = quantCell.getDisplayValue();
  // return an object with your values
  var nameCell = sheet.getRange("B" + cellRow);
  var name = nameCell.getDisplayValue();
  var teamCell = sheet.getRange("C" + cellRow);
  var team = teamCell.getDisplayValue();
  return {
    depot: depot,
    date: date,
    quantity: quant,
    name: name,
    team: team
  } }
}

用户一次输入多行数据，我希望在该用户输入完数据后收到通知，但仍会在电子邮件中发送他们输入的所有行的信息。目前，我每次完成一行时都会收到一封电子邮件。