Hello all, When I try to access the Umbraco backoffice through my domain URL (e.g., "https://domain.com/umbraco"), I receive the following error: error: invalid_request error_description: The specified 'redirect_uri' is not valid for this client application. error_uri: https://documentation.openiddict.com/errors/ID2043 However, when I access the backoffice locally via "https://localhost/umbraco," it works perfectly without any issues. Could you explain why this is happening and how I can fix it?

You have to sign in using the same domain as you subsequently use backoffice from... and maybe also set the Umbraco application URL in the application settings.

@kdx-perbol Is there any way to make [“https://domain.com/umbraco” and “https://localhost/umbraco”] work without problems with backoffice?

Don't know, sorry. Haven't run into this myself other than during install/setup/etc.