This is the function I want to be triggered when On edit (Spreadsheet 1)
function sendData()
{
var value1=SpreadsheetApp.getActiveSheet().getActiveRange().getValue();
SpreadsheetApp.openById("third spreadsheet ID").getSheetByName("***").getRange("B2").setValue(value1);
}
From another spreadsheet (2) I wrote down:
function TriggerOn()
{ // create trigger
var spreadsheet = SpreadsheetApp.openById("first Spreadsheet ID");
ScriptApp.newTrigger("senData").forSpreadsheet(spreadsheet).onEdit().create();
}
But it doesn't work because forSpreadsheet(spreadsheet) only works on the same spreadsheet...