You should have received Statement A (QBI Pass-Through Entity Reporting) with Schedule K-1 that provides specific information for Line 20 Code Z.
When entering your K-1, check that it has Box 20 Code Z. You don't need to enter any amount for Code Z.
The Schedule K-1 does not have a box 20. Nor did I get a Statement A. I have every thing entered and cannot move forward.
If you see an error about Section 199A income but Schedule Box 20 is empty, you may wish to review your entries for the K-1 to be sure you didn't check that box. Even if you don't enter anything for the box, if there's a checkmark for Box 20, you will see this message.
@1karriturner63