If I E-file W2's through QB, do I need to create a TCC?

I recently received a letter from the IRS that said, I needed to file my W-2s trough e-file and  that I also needed to create a TCC, in order to e-file.  I also created an account with ID.me. I have never utilized the option to e-file through QB, I have always mailed them. So, my question is if I e-file through QuickBooks now, do I need to file again using my TCC number or does that cover everything, just filing through QB?