<HTML><H3>When configuration changes will be operative?</H3></HTML>
We haven't found any official NAV specification about the behavior of observer pattern in case of table schema changes (for exemple, when a new .fob is imported for table set for export): we suggest in this case to follow the most conservatory steps, i.e. to restart all middle tier services on Source database; changes of schema of a table set for import will be handled by standard NAV services Synchronization, and no manual procedures are required.
Please be aware that the modification of setup could temporary create a misleading configuration, so it's definitively better to change the Data Distribution tables / fields configuration when users are not connected, and finally restart all middle tier services.