QuickBooks update error 404 is a QuickBooks sync error that occurs when the QuickBooks desktop cannot connect to the Intuit server. This error can occur on both QuickBooks Desktop and  QuickBooks online. There are many solutions that can help solve this problem.

Method 1: Reconfiguring the system settings

Method 2: Verifying the internet speed

Method 3: Changing the internet settings

Method 4: Updating and repairing QuickBooks

Visit eBetterBooks to get the solutions in steps to fix the error quickly