It is known as Multi-User Mode issues in QuickBooks when several users are unable to view the company file at the same time. These problems are caused by firewall constraints, improper network configuration, or improper hosting settings. They can be fixed by utilizing QuickBooks Database Server Manager, verifying that the network and firewall parameters are correct for smooth access, and reviewing the hosting settings. Give our QuickBooks Experts team a call at 1.855.738.2784 to talk with them.