Any ideas on when the boxes are scanned and entered into the apple and/or UPS system. I would like to think they are scanned once they are in the US but if they are scanned when leaving china it is looking bleaker and bleaker for a Friday delivery.
They're scanned by UPS/FedEx/Cargo Carrier at every point, but often at the pallet level until they reach the US or at their "seperation point". This large of a roll-out, my guess is that theyre sending pallets of the same type over to the initial US point to clear customs, then maybe again to a regional/national-level hub (i.e. Memphis or LAX for FedEx). However, it's possible that they're packing for destination, though I would expect to see large geographical areas see updates, rather than the configuration trend we've been seeing**. From there, pallets very could well be sent on to the next regional hub (Newark, for example), then broken by the pallet and reorganized by destination, and either loaded onto a new air-cargo pallet or onto a truck. That's where Apple would trigger the label/shipping info to you. Yes, every pallet has a digital registry of which individual packages are in there, but it's too much data to be pushing around with hundreds of boxes in a pallet.
Just my two cents and making some assumptions on how they're shipping based on people's updates seemed to come based on configuration. I only know a bit about industrial engineering, a tad more about cargo routing, and a lot more about where airplanes fly to/hubs/how fast they can get between the two
**Obviously international orders, like UK, might all update near or about the same, but they may even be going configs to them too
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UPS is doing a major regional push out of SDF, their hub. Lots of flights headed west, few headed east. MEM/FedEx is still pumping flights out, almost all domestic, a couple back to ANC. Weather is in the area, but they seem to be pushing right through. Lots of East Coasters got an update around 6pm last night, which aligns with their ETAs
*Update: looks like MEM had fewer departures over the last hour or so with the weather in the area, may explain the continuous exodus of planes going on right now (it's crazy looking). Weather on the east coast too, not good for aircraft but they're departing/arriving alright. This is a really, really busy time across the nation for flights, but they're movin!