Can i delete unwanted stock transactions imported from external account?

[Frank381]

when cost basis is zero

[Critter-3]

If the imported sale has a zero cost basis then you can enter the correct stock basis if you like but just deleting the sale will not sit right with the IRS since they also get the sale info.  If your broker doesn't have the basis info then you need to supply it for the return. 

[Mike9241]

there are situations where the cost basis will be zero but nothing will be imported for the cost. for example an option short sale that expired. since there are proceeds it must be reported.