When you try opening your company file, you receive the following message:
QuickBooks is unable to open this company file. It may have been opened by another user...
Error codes: (-6073, -99001)
This error is usually caused by any of the following:
- The file is open on another computer in Single User mode.
- The file is located in a read-only network folder.
- The files are hosted on a Linux server and are using more than one set of login credentials to sign on to the shared folder.
- The file is being accessed using a remote software (LogMeIn, GoToMyPc, etc.) and the host computer still sees that that user is still logged on.
Solution1: Use the QuickBooks File Doctor
Solution 2: Manually resolve the error -6073, -99001
If the company file is open in Single User mode in another workstation
- Close QuickBooks Desktop in all computers.
- Open the company file on the Host computer.
- Go to the File menu, then select Switch to Multi-user mode.
- If are getting the same issue, reboot all workstations.
If the company file is open in Single User mode on the Host computer.
- Go to the File menu, then select Close company.
- Re-open the company file. Go to the File menu, then select Open or Restore Company.
- Select Open a company file, then Next.
- Select your company file.
- Select Open file in multi-user mode, then Open.
If your company file is located in a read-only network folder
- Go to the computer that is hosting your company file.
- Open the folder where your company file is saved.
- Right-click the folder, then select Properties.
- Go to the Security tab.
- Select the user that is having issues to log in, then Edit.
- Check Allow for Full control.
- Select Apply, then OK.
If the computer is being accessed remotely via LogMeIn, GoToMyPC, etc.
- Right-click the task bar, then select Task Manager.
- Go to the Processes tab. Check if there are running processes under the name of the user that you are having issues with.
- If there are processes under that user, restart your computer.