Normally, it will take around 3 days for tracking information updates when it is dispatched. If you have not seen the tracking information updates on internet 3 days since dispatched, then it might because of the post office processing delay, we have to wait for another 2 days. As long as some products are too hot to keep inventory, there would probably be a momentarily out of stock for items you are working on. No worries, they will be back to stock in 2-3 days, and the tracking information will be updated soon.