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@ReneeM7122 . I already entered the costs for each sales to the software and on the summary page. It shows this message with the total gain/loss. 

 

It shows:

Category  = box E

Description: Long term sales with cost basis not report to IRS.

Total G/L amount

 

If click on edit, it brings me back to the previous page of each sales. The smart check all passed. I am not sure why seeing this message.