First part is correct. D corresponds 2018 and D17 corresponds to 2017 (messed up by employer).
Now, on the second part How/Where can I can type the D17. There is no option or place for that. I only see the letter code D to be selected from the dropdown and the corresponding column only takes the Dollar Amt.
So, how can I indicate the "17" in the tax form, where "17" is reflected in the W2 ? Without the "17" the software is indicating that I have made excess contribution, which is how IRS would also then interpret ?
