When users attempt to open, restore, or update a company file in QuickBooks Desktop, QuickBooks Error 6123, 0 typically shows up. Firewall disruptions, network problems, or corrupted enterprise data could be the cause of this error. Quickly fixing the problem avoids delays to QuickBooks' workflow and helps restore seamless access to financial data.  If you require help with QuickBooks, give 1.855.738.2784 a call.