"Sch K-1 box 20 code Z has been selected but no Section 199A income has been entered on Statement A" - please advise what to do?

If your K1 had business income, there should have been values entered onto the Statement A attached to the K1.   If you entered it, there is another step to take.  This information is entered on the Page that says "We Need some information about your 199A Income"

There is a list of items that would appear on your schedule A on that page.  What you need to do is check off the lines that correspond to the information on the Schedule A.  This expands the lines so you can enter the information from the Schedule A onto the screen.

This should get rid of the error.

Thanks.

For clarity, 

BOX 20 has N , Z, AG, AH and asks us to refer to STMT

When we refer to STMT, we only have

N

AG for 2021

AG for 2020

AH (which has "Non-recourse, Qualified..., recourse)

For Z there is an entire page with values for

       QBI or Qualified PTP Items

       W-2 wages

       Qualified property

So our question are,

1) how do we get Z amount since it has amounts for QBI, etc as explained above ?

2) Is AG to be entered for 2021 only?

3) AH - what value to enter?