How to connect NatWest bank accounts, when an error message comes up afterwards?

Hello, shauniwhicker. 

I'll lay down the steps to help you resolve the error message and connect your NatWest bank account. 

Since you received an error message, I'd appreciate it if you could provide the code so I can lay down the appropriate steps to fix it. 

In the meantime, let's do the following solutions to help you connect your NatWest bank account. 

Usually, error messages are caused by connection issues. NatWest might be conducting a maintenance update in their end, which is why you're unable to connect your account. In this case, contact them to check on the estimate time on when it'll be done. 

Another thing to look out for is the important notification within your NatWest account. Log in to it and check for any important updates or notifications that might be causing the issue. 

Also, here are some articles that can help you fix common error messages when connecting your bank account:

• "We can’t find this account at your bank" error when updating connection to Open Banking
• Fix bank error 108
• Fix bank error 102 and 105

Alternatively, you can manually import your transactions through an Excel file. This article can help you with the process: Add older transactions to QuickBooks Self-Employed. 

When you've managed to resolve the issue and connect your bank account, you can start categorising your transactions for your self-assessment taxes. 

Do you have questions with your transactions? Please let me know and I'll do what I can do help you sort them out. I'm still open to address any other concerns you might have.