This is how I found out it was built also. About 10 days later it arrived to my dealer in Dallas…damaged. That was 7 days ago and now it’s at the GM collision center with no eta on when I can get it.have you checked the dealer's website that you are buying from - or GMC's inventory page? (for both VIN confirmation and possible window sticker)
My vehicle populated on the dealer's website the day it was built (no window sticker)...they had a link to the window sticker but it didn't generate until the next day.
Usually the window sticker won't appear until it's 100% complete...trucks that have factory bed liners will get built and the window sticker won't be generated until the bed liner (or steps or some other accessory) is installed which is usually at a different facility so there's a delay
not sure there's similar options that would fall in this category though for a Yukon...even the different rims shouldn't impact the shipping as those are dealer installed