QuickBooks error 6210 is related to the error code series 6000 that occurs when opening the company file. It is an annoying error as when it occurs; you may not be able to access your company records. The error typically occurs in multi-user mode. The main reason behind the error 6210 in QuickBooks is that the computer that is hosting the company file is not the server computer, but it is a terminal computer. There are several other reasons that can cause error code 6210.The Following article link will help you to eliminate QuickBooks Error 6210 and moreover you can contact QuickBooks professionals via +1-800-579-9430.