QB wont let me manually add a bank account. I get a user error code

I'm here to help you get past the Bank Error 400, inspiredrising.

Bank Error 400 indicates that the server is unable to process your request due to a perceived issue with the server itself, such as corruption. Let's perform some steps to resolve the problem. 

First, you can log in to your bank's website to check if you're experiencing the same error. If the issue persists, it can be coming from your bank. You'll need to reach out to them so they can investigate the situation further.

Additionally, you can manually update your bank account to refresh the connection between QuickBooks and your financial institution. Here's how:

1. Go to Transactions and select Bank transactions.
2. Click the Update button.
3. If you see a message about additional authentication, follow the on-screen instructions to continue the update.

I also suggest visiting these articles to help you manually add a bank account in QuickBooks Online (QBO):

• Connect bank and credit card accounts to QuickBooks Online
• Bank errors and missing transactions in QuickBooks Online

In case you need to reconcile your accounts, you can refer to this article for more guidance: Reconcile an account in QuickBooks Online.

If you have any more questions regarding Bank Error 400, please let us know by replying to this thread. Our team is always available to assist you. Stay safe!