Thanks for joining this conversation, @jessicajo20.

The investigation about Capital One not connecting in QuickBooks Online (QBO) is still open. Our Product Engineers are still working to fix this as soon as possible.

That said, I highly suggest contacting our Phone Support team so they can add your info to our notification list. This will also help our Engineers determine the number of affected users. An email notification will be sent to you once this has been resolved. I'll also inform you here when we get the update as well.

You can follow the steps shared by my colleague Rea above or refer to this article: Contact QuickBooks products and services Support.

For more insights about adding bank and credit card accounts in QBO, check out this article: Connect bank and credit card accounts to QuickBooks Online.

Please know that I'm only a few clicks away if you have any other issues or concerns. I'll be here to help. Have a great day!