QuickBooks error H202 is an error that pops up when a user tries to use QuickBooks in multi-user mode. This error implies that the multi-user connection to the server is blocked.QuickBooks error code H202 message states that the company file is on another computer and QB needs some help connecting. When this error occurs, a QB user fails to open a company file located on another computer.if QuickBooks Error H202 does not get resolved, call us now at our QuickBooks Error Support Number +1-877-349-3776 to get instant troubleshooting.