For my bank accounts to update in Quickbooks, I have to constantly verify that it is me by getting a code text to my phone. Is this normal?

Hi there. Let me share information about codes when updating bank accounts in QuickBooks Online. 

The code sent from text messages or email is part of the multi-factor authentication for security enhancement. It will received to your registered mobile phone number or email to verify your identity and ensure secure access to your account. 

If your bank asks you a security question, answer it. QBO will recognize your responses to the questions and allow you to complete the bank setup process in QBO.  

On the other hand, I recommend scanning this article as your reference in reviewing the downloaded bank transactions inside QBO: Categorize online bank transactions in QuickBooks Online. 

Don't hesitate to reply with more queries about managing your bank accounts in QBO. I'm here to help you. Have a good one!