To fix QuickBooks Error H101, you can try the following steps:
Make sure that the network drive is accessible. Try accessing the network drive from another computer. If you cannot access the network drive from another computer, then there is a problem with the network drive and you will need to contact your network administrator.
Make sure that the QuickBooks file is properly shared on the network drive. To do this, right-click on the QuickBooks file and select Properties. Click the Sharing tab and make sure that the Share this folder box is checked. Click Advanced Sharing and make sure that the Share this folder box is checked and that the Permissions section is set to Everyone with Read/Write permissions.
Repair the QuickBooks installation. To do this, open the QuickBooks Tool Hub and select the Install Diagnostics tool.
Disable any third-party programs that you are not using. Some third-party programs can conflict with QuickBooks and cause Error H101.
Regards,
Peter