Here is what I did in TurboTax 2019 for Home and Business, and it seemed to work for me, as I no longer get errors in the review portion of the TurboTax dialog box.
You can click 'FORMS' in top left corner at any time and enter amounts / information directly to the 1040 schedules and form. After clicking Forms, scroll down the left column list of forms / worksheets until you find the
K-1 Partner form for which you need to enter information for code "Z" from the K-1 statement. Click on that form, and the K-1 information and worksheets will appear on the right side of the screen. Scroll down to Section D1, Qualified Business Income Deduction - Statement A Information. Here you will find the line items for entering the ordinary business income (loss), rental income (loss), Section 1231 gain (loss), W-2 wages, and the UBIA amounts from your K-1 Partner Code 'Z' statement.
Good luck!
