QuickBooks Bank account not updating is known officially and formally by the name of banking error 9999. To deal with this error manually, you can execute the steps shared below in your software.
 Open QuickBooks software, connect to the banking option, and then click on Updates. Do this for three times at a stretch.
 Next, clear the system’s cookies and cache.
And, if these solutions do not work, then, get in touch with the technical representatives at QuickBooks support phone number.