Why doesn't QB accept JP Morgan Chase bank info ?

Let's check the reason for this, because regardless of which bank it is, as long as the vendor bank information entered is correct, it should be able to be saved and not rejected, RMW33408.
 

First, please verify with your vendor to ensure the bank account number and routing number you have are accurate.
 

If the numbers are confirmed correct,  I suggest logging out of your QuickBooks account and then logging back in, as the system may not recognize updates until your session refreshes.
 

If the issue persists, I recommend contacting our live support team. While the QuickBooks Community has limited resources, our live agents can provide more in-depth assistance. They have the tools to determine why the bank information is being rejected, can connect to your screen for a remote session, and are capable of resolving issues like this promptly.
 

Please leave us a response if you have any other questions or need further assistance.