Hello, @office147.
You can manually update your bank account to refresh its connection. Just click on the Update button on the Banking page. If you're getting any error codes, refer to this article to resolve them: Bank transactions won’t download or there's a bank error.
You can match and categorize your transactions, once it's already in QuickBooks.
If the transactions you just uploaded are older than your opening balance, you may need to edit your opening balance.
Keep me posted if you have any concerns about downloading your transactions into QuickBooks. I'll be happy to help you out.