onEditExample.gs

// Simple Trigger (normal onEdit() Function) have the restriction which can't be used to call any functions 
// that required the authorization. So use Installable Trigger instead.

// Warning:! Set Trigger for one time only otherwise you will have duplicate triggers!.
// Note: createSpreadsheetOpenTrigger will not return anything if success.
function createSpreadsheetOpenTrigger() {
  var ss = SpreadsheetApp.getActive();
  // Set Installable Trigger.
  ScriptApp.newTrigger('specialOnEdit').forSpreadsheet(ss).onEdit().create();
}

function specialOnEdit(e) {
  var range = e.range;
  range.setNote(JSON.stringify(e));
  sendToLineNotify("(" + range.columnStart + "," + range.rowStart + ") > " + e.value);
}


// Normal UrlFetch Functions.
function sendToLineNotify(text)
{
  var bodyPayload = {
    "message": text,
  };
  var lineNotifyToken = "";
  var requestData = {
    "method": "post",
    "headers": {
      "Authorization": "Bearer " + lineNotifyToken
    },
    "contentType": "application/x-www-form-urlencoded",
    "payload" : bodyPayload
  };
  UrlFetchApp.fetch("https://notify-api.line.me/api/notify", requestData);
}