If you want to replace the old values in the synchronization parameters with new values, clear the previous synchronization parameter values before retrieving data from an MBO during a synchronization session.
<MBO>SynchronizationParameters *params = [<MBO> getSynchronizationParameters]; //must re-get the sync parameter instance [params delete]; params.Param1 = @value1; //set new sync parameter value params.Param2 = @value2; //set new sync parameter value [params save]; [SUP101SUP101DB synchronize];