Following reas can trigger QB error 6123 in your system.
If you are utilizing an outdated QuickBooks Desktop application.
Damaged QuickBooks company file not only evoke error code 6123 in quickbooks desktop but also accounts for several other 6000 series errors.
If you are attempting to restore the backup from an online or an external storage service like Dropbox, a flash drive, etc., then also you might face error 6123 in QuickBooks.
If you are getting QB error 6123 then follow this article to resolve it as soon as possible and if you have any further queries, please contact our technical team at +1.855.738.0359.