Quickbooks Error h202 can occur for a variety of reasons. The following is a list of them.

The ND files aren't set up correctly.

The database file cannot be accessed or opened by the user.

DNS service setup is incomplete and incorrect.

When a firewall prevents the accounting software from communicating with other important apps.

This problem can also be caused by incorrect or unsuitable hosting configuration.

QuickBooksDBXX/QBCF is unable to start.

If the user prevents the QuickBooks file from being accessed.

The data file has been configured incorrectly.