A7. At Version1.00, the period is fixed with the current visible one month.
Version1.01 and later has an option to specify the period. Also modified the sync algorithm to update only the appointments that were updated after the last sync operation. This change contributes to reduce data traffic and time to sync.
Once you changed the sync period, the first sync process will check all of the appointments in the period, so that the process may take up to few minutes to complete. Please make sure the radio strength and battery are enough to complete the process before to start the first sync.