You don't necessarily need the window sticker (it's just an alternative way if you can't find your sheet).
This is a sample dealer order sheet (mine looks identical for my Explorer order).
Dealer order number will be on your contract sheet specifying your order details.
You can check out this post here that talks about some general details and a picture of what it looks like.
Edit: Link didn’t work
Hi! My name is JohnMark and I’m a software engineer.
I ordered an Explorer ST this year and created a tool to watch my order in more detail than Fords page. It has links to a lot of relevant tools and works a lot more reliably than Fords tracker at the moment. For some reason Fords site locks...
You should try my app that I created for the Bronco6G group!
ordertrack.app
Here is my post about it!
Requires your dealer order number (on the spec sheet when you bought the vehicle) and your vin once you get it.