How to Resolve QuickBooks Error H101: A Multi-User Mode Issue
QuickBooks’ H-series issues are all related to the multi-user mode. You can get error code H101 in QuickBooks Desktop if something prevents multiple users from connecting to your server. This technological issue makes accessing firm files on the server computer or another workstation problematic. This problem suggests that many workstations may be configured as QuickBooks servers. According to the settings for multi-user mode, only your server, the machine that has the corporate file, should be able to host the mode.