Are you stuck with
QuickBooks Error 4120 and unable to decide what to do? This error typically occurs when there's an issue with the user's company file. It indicates that QuickBooks couldn't close a database connection. This error might surface due to various reasons, including network issues, damage in the company file, or interruptions during the QuickBooks software installation process.
Solutions to Resolve QuickBooks Error 4120
This error can be fixed quite easily by using a data rebuild tool.
Use these steps as follows:
Method 1: Reinstalling or repairing QuickBooks
Method 2: Copying company files to another system
Method 3: Checking for any system errors
Method 4: Use QuickBooks file
doctor tool
Method 5: Run disk cleanup
Method 6: Repair and reinstall Microsoft .NET framework
Method 7: Download Windows updates