Whether you understand it or not isn't really important at this time.
All you need to know is the NC DOR isn't processing any e-filed or mail-filed tax returns right now
.....so TTX won't let you step forward with state taxes until the NC DOR is fully updated their own computer system and calculations, ANNNND even then, after they are finally done, the NC DOR has to approve the TTX data format that they will receive.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
