Why can't I override cost basis and date acquired for stocks sold?

[gensuki]

I sold 3 stocks in 2020 which was in my Vanguard brokerage account.  When I downloaded the transactions to TT, I noticed that the dates acquired and cost basis were wrong.  These were classified as Box E so basis was not reported to the IRS.  In that case, why can't I correct it?  TT won't let me override it.  It actually lets me override, but when I do the Smartcheck, it keeps coming up as an error.

The original stock (HP) I bought in 1997 and it has had many spinoffs so not surprising Vanguard couldn't keep it straight, but I have my own records and want to correct it.  How do I do that?

[LindseyLO]

More guidance and assistance on your 1099-B has been provided by clicking here.

[gensuki]

Unfortunately this is not my problem.  The information from Vanguard loaded correctly except the information from Vanguard is wrong and I want to override it.  However, when I do override it and do SmartCheck, TT says I should not override it.  This is not the same as the link you sent me which was about a blank date.

[LindseyLO]

Please contact TurboTax customer care so they can further assist you. Help with doing so has been provided by clicking here.

[fanfare]

;delete the record imported from Vanguard.

Enter your info from your own records manually.