Are you struggling with QuickBooks Error 6073 and 99001 while opening your company file in the application? Well, the error code 6073 and 99001 appears on your screen when you try to open a company file on a system in single-user mode while it is already opened on a different computer. The main reason behind the error is not having the required setting configurations while accessing a shared company file. Thus, you need to configure the set...