Mailing any kind "statement of detail" is not an option for me - I have huge amount(tens of thousands) of sales with adjustments and a lot of non-covered sales(I should send to IRS a big shoe box of paper).
I have only 2 option:
1) Report "summaries", make "total summary" adjustments for some of them and attach 1099B.
2) Aggregate tens of thousands sales into several "individual" sales in each sale category. Make all necessary adjustments to them.Make sure sums of those "individual" sales and their adjustments correspond 1099B. In this case no need to attach 1099B and send any "statement of detail", but I'm not sure it is 100% working option.
