Thanks for reaching out to us here in the Community, @Moneytalks.
I'm here to assist you with getting your BB&T bank account connected to QuickBooks.
There could be multiple reasons why you're receiving the 324 error message. Let's do a few troubleshooting steps so we can get your issue resolved in a timely manner.
1. Clear your browsing data. Note: This will bring forward a fresh page for QuickBooks to remove any error messages that may be standing in your way.
2. Contacting your bank about the issue to see if other customers have called in about the same problem.
3. If the bank hasn't heard anything, then I suggest resetting your bank website password.
I want to make sure that you try the steps above so that I can determine the best solution to your question.
I'll be waiting for your reply.
