My 1099B is missing sales costs which caused me higher gains than the actual. How can I fix that?

[Sunnytax]

These were from two transactions of sending a crypto from Coinbase to Uphold. These crypto were bought from Coinbase then were sold in Uphold. The sales cost from Coinbase is what is missing in 1099 Uphold issued to me.

[JamesG1]

Have you imported both Coinbase and Uphold into TurboTax Premium Online?  Or have you only imported Coinbase transactions?  Please clarify.

Your are able to review, edit, correct transactions within TurboTax.  Select the box to the left of the transaction line and Bulk Edit is invoked.  The pencil to the right may be used to Edit the transaction line.

Select Add another sale at the bottom to add an entry to correct your income reporting.