Steps to resolve error -6073, -99001.
Explains how to resolve errors H101, H202, H303, and H505 when opening a company file in multi-user mode.
Update QuickBooks to the latest release, create a new user account, and ensure that the QBDataServiceUser(XX) has appropriate permissions to access the file.
Steps to resolve error 6189 by setting appropriate access permissions for the folder that contains your company data file.
Network errors such as error -6000, -80: "An error occurred when QuickBooks tried to access the company file," can occur when restoring a QuickBooks company file from a backup, updating a company file, or attempting to open a company file.
Steps to resolve error -6108, -105, "QuickBooks Company file cannot be opened..."
Steps for resolving error -6190, -83 error, which can happen when more than one computer is set to host the same company file.