Here is the list of reasons why QuickBooks Error 6189 816 occurs.
1. Damaged or missing QuickBooks components or the QuickBooks Company File essentials.
2. The company file on a network computer is in use by a program or a process.
3. Accessibility issues with the company file or file folder on QuickBooks Host Computer.
4. Issues with QuickBooks registry values in Windows Registry.
Your time and efforts are highly appreciated having tried to resolve QuickBooks Error -6189, -816 at your own as per the steps recommended. You may have ended up disappointed if the issue still prevails despite all endeavors. Nevertheless, you have an everlasting option to reach out to QuickBooks Phone Number at +1-855-434-3050.