Purpose is a timestamp of approval - and while I can capture the date and my own email (since I'm the owner of the script), it currently captures only the date and no personal information
function onEdit(e) {
var s = SpreadsheetApp.getActiveSheet();
if (s.getName() == "Brand Approval") { //checks that we're on the correct sheet
var r = s.getActiveCell();
var email = Session.getActiveUser().getEmail();
if (r.getColumn() == 18) { //checks the C column
var nextCell = r.offset(0, 2);
nextCell.setValue(email);
var nextCell = r.offset(0, 1);
nextCell.setValue(new Date());
}
}
}