I have fully figured out this issue and anybody else reading this forum should be delighted.
Please understand that your Apex Clearing ID or (Apex ID) can be found after you've set up your Apex account.
It's a ten-digit number broken by a dash after the first two numerical digits and should look like this; (00-00000000)
1) log in to your Apex Clearing Account
2) Click the (Apex Online Menu) tab
3) Under "Tools" find and click (View Accounts)
Here will display all of your accounts linked with Apex. Copy and paste this into Turbo Tax and enter your SSN and you should be good.
I'm sure there might be an easier way to find this but this helped me.
