QuickBooks accounting software is a very easy and comfortable application for businesses through which you can create and manage your accounting and financial reports. But like all software, QuickBooks also has many technical errors which cause a lot of trouble to the user. At the same time, work also gets interrupted. QuickBooks Error 6123, 0 is also one of these errors that the user faces when he is trying to restore the backup of the company file. However, this error appears suddenly without any indication, which interrupts the operation of the QuickBooks company file. There are some factors and technical issues that cause QuickBooks Error 6123, 0. Which we will solve easily with the help of the steps mentioned in this segment. What is QuickBooks Error 6123, 0? Whenever error 6123, 0 is active in your software, this error appears on the display of the QuickBooks desktop with a message that reads "Error: -1623, 0 we're sorry, QuickBooks cannot open the company file." Typically, this QuickBooks error 6123, 0 TB occurs when users open their company file while trying to restore it after an upgrade. Additionally, this error does not occur in a network file. The reasons for this vary – it can be due to corrupted data within the file, network setup issues, firewall restrictions, or even a faulty QuickBooks installation. While tools like QuickBooks File Doctor often come in handy as a solution, sometimes the solution requires a more in-depth approach, which we will consider in detail. Causes for QuickBooks Error 6123, 0. If you are encountering QuickBooks error code 6123, it is probably due to one of several common factors. Identifying the root cause is the first step to resolve the problem. Here is a description of the causes that trigger this error- If you are trying to back up or restore data when the error occurs, this process may be the cause of QuickBooks error 6123, 0. This error often occurs when the company file is already open on another computer, especially in a multi-user setup. Problems related to your network or connection can disturb access to QuickBooks, which trigger the error 6123. Sometimes, other applications, especially antivirus programs, can interfere with QuickBooks, it can lead this error. Older version of QuickBooks also leads various errors including error 6132, 0. Incorrect permissions on the folder containing the company file can prevent proper access, causing this error. Corrupt network connection can announce the arrival of a 6123 QuickBooks error. QuickBooks error 6123 0 may appear if the Windows Operating System is crashed or gets damaged. Solution to fix the QuickBooks error 6123, 0. Solution 1- Run 'Quick Fix my File' in Tool Hub If you have QuickBooks tool hub then open it by double clicking on it. If you don't have then download and install it. Select the Company file issues option from the tool hub. And click 'Quick Fix my File' button. It starts scanning and repairing the files issues and it takes several minutes. After completing the process exit from it. Solution 2- Use the QuickBooks File Doctor You can use QuickBooks file doctor from the tool hub. Go to the company files issues tab and click on the QuickBooks File Doctor' button. Follow the instructions which are shown on screen prompts. Select your company file and browse to locate it. Click to 'Check your file' and then click on continue. Enter your QuickBooks admin password when prompted, then click Next. File Doctor Start diagnosing and repairing any problems. After completing the process restart your computer and open the QuickBooks desktop and try to access company files. Read More!