Your correct 3 digit school district code is also part of the SPAN number on your local property tax bill. It's the second 3 digit group in that long hyphenated...
try opening your return from the Forms icon and select Errors up in the top left corner (looks like a stop sign with an exclamation point). this may lead you to...
This info you've just provided here should be much more clearly stated in the TT process. Lots of people have noted here in the Community that the IRS has later...