There has been a lot of email chatter at my store recently with the fact that because of school starting up again, people are being scheduled against their updated availability, and the ETL-HR has made it clear that it is NOT the fault of those particular Team Members, and they are NOT going to be written up, and those who are doing their schedule need to do a better job of making sure to correct any "mistakes" that happen as a result of mytime.
But, like all things Target, that's just how it is at my store. Results may vary