Sometimes your employer can't fit all the information onto one W-2 form or needs to correct only certain information, so you end up with an "incomplete" W-2 form to go with your "complete" W-2 form.
To deal with this issue, add the additional information to the complete W-2 after you have entered it in TurboTax, so that they end up being treated as one W-2 in the software.
This will resolve your issue.
