Importing 1099B Brokerage Data from Vanguard

Using TT for MAC 2021. Running Monterey 12.2.

 

I am unable to successfully download 1099B data from Vanguard. TT asks for my account number and specifies an 11 digit number. However, my Acct number on the document is 8 digits. If I enter this 8 digit number TT will not allow me to proceed.