The code AH on Form 1065 Schedule K-1 is for "Other Information". According to the instructions for code AH at this link, it can include certain specified information, or "Any other information you may need to file your return and not shown elsewhere on Schedule K-1". So, my conclusion is that the K-1 preparer used that heading to give you general information about your K-1, including your box 20 code Z, but there are no AH, AA or AB amounts for you to enter.
The numbers in the purple box are the part of the Section 199A amounts from the pass-through entity versus those generated by the partnership itself.
Because your K-1 is reporting Section 199A information generated by the partnership and Section 199A information generated by a passthrough entity, you'll need to "split" this K-1 into two separate K-1s for entry into TurboTax. Enter one K-1 with only the "box" amounts generated by the partnership, and a second K-1 with only the "box" amounts generated by the passthrough entity. If you can't figure (deduce) that "split" from the information you have, you will need to contact the preparer of the K-1 to get those amounts.
Note that when you enter each K-1, you'll encounter the question "Is the business that generated the Section 199-A income a separate business owned by the partnership?" screen, TurboTax is asking if the Section 199-A income was passed through to the partnership sending you the K-1 by another partnership, S-Corp, or trust; versus being generated by the business operations of the partnership that sent you the K-1. So, on one of the K-1s you enter you will answer that it is from the partnership, and on the other you will enter that it is from the pass-through entity.
@wabekem
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