Error message after database conversion SQL Server/SQL Express Error-302

When converting the UCServer database to SQL, an error-302 occurs after clicking "Apply".

Possible reason is a authentication problem

This indicates an authentication problem.

The UCServer service runs with the local system account after installation. However, this is not known to the Microsoft SQL Server.

Procedure

To enable Windows authentication on Microsoft SQL Server in such a case, please perform the following steps:

• Mixed authentication or Windows domain logon must be enabled in Microsoft SQL Server.
• On the UCServer start "services.msc", search for the server service "estos UCServer".
  In "Properties -> Logon" activate "This account" and enter a domain user or service account with password ("domain\user").
  Now the UCServer service still has to be restarted.

Once you have reconnected the UCServer administration, the error will no longer occur when switching to the Microsoft SQL database.