No value on line 8. Form 8606?

On my Online tax return (tax year 2021) there is no value placed on line 8 of my Form 8606.   Turbo tax auto inserted all values on this form.   Do I need to correct this?   I was under the impression that I need to put the full amount that I converted (back door roth conversion).  RE:  8 Enter the net amount you converted from traditional, SEP, and SIMPLE IRAs to
Roth IRAs in 2021. Also, enter this amount on line 16....... Oh, and I now see that line