"Instead use the "enter a summary" option to put your numbers on Schedule D Line 1a or Line 8a."
If you summarize (recommended),
you only need to supply details of 1099-B covered transactions with adjustments that are not listed on your e-Filed Form 8949. and all non-covered transactions not listed there.
In other words, for active investors, generally this is a list of the Wash Sales.
If you plan to mail your entire consolidated 1099-B,
put your amounts for all covered transactions on Schedule D Line 1b or Line 8b.
