A little quirk in SE. As busy owners running our businesses, we shouldn't have to go into Store Update Exceptions to see if a tracking number wasn't updated. SE system should automatically retry 1 or 2 times over a span of 15 or 30 minutes. This would resolve some issues we have with exceptions that could have easily been resolved if SE would have auto-retried sending the tracking details. This seems to happen mostly with our Walmart orders.