         log.info "Changing fields for #{konnectorName} with #{fields}."
         connector.change konnectorName, fields, (err) ->
             if err
+                log.error "Failed to change fields."
                 log.error err
             else
-                log.info "Fields were successfully changed for #{konnectorName}"
+                log.info """
+Fields were successfully changed for #{konnectorName}
+Note: only fields described in the connector file are stored.
+"""
 
     else
         log.error "Field values are required (see --fields option)."


    connector.run konnectorName, (err) ->
        if err
            log.error err.message
        else
            log.info "Import is finished."


    if program.delete
        modelName = program.delete
        data.delete modelName, (err) ->
            if err
                log.info 'Destroying models failed.'
            else
                log.info 'All models were destroyed.'

    else if program.show
        modelName = program.show
