The QuickBooks Error 6210generally came into the picture in multi-user mode. However, this issue also appears when a user retrieves the company file (hosted in a workstation) without establishing its network server, so this will land you on the QuickBooks error code 6210.
We recommend you get some knowledge on these QuickBooks error code 6210. Let's get deep insight into this error, its symptoms, and why it occurs, followed by the method that will help you address this problem.