1099B

Question on inputing 1099B by hand on turbo tax.   I manually entered all of the 1099B.   Also, Do to a reorg fee that I was charged on one of the stocks I had to correct the amount by reducing it.   After I get through the prompts I receive this message.  

How do you plan on submitting your 1099‑B to the IRS?
You'll need to mail a paper copy to the IRS.
 
My question is what prompted me to have to mail a copy in?  If I find it through turbo tax to imput it will I not have to mail anything out?   Or if I don't put in the 38 fee will I not have to mail anything out.   Not worth the couple of dollars in tax savings if I have to wait for the irs to receive a copy in the mail.  Thanks