This reminds me of those new gadget commercials that show existing issues being super difficult when they really are not. You were probably in a terrible mood when you wrote this which makes it much worse than it is. It could try to parse the tracking id for sure and you probably have never dealt with tracking packages before through an API but they give you not that much info most of the time, just like "arrived at…
Google can figure it out. I order something, i get cards in Google Now telling me exactly what i ordered and its shipping status, without any interaction on my part. It just happens.
If microsoft can't figure out how to do this, fine. But if they're going to pop up notifications saying "hey, i can track packages for you", they should be at least sort of on par with the competition.