Sync type configuring

You can define sync mode type in Magento on the module configuration page, see my screenshot below.
The "Synchronization Type" dropdown contain following values:
 * "Realtime" - dat awill be sent to Salesforce immediately
 * "Queue interval" - data will be send to Salesforce every few minutes/hours
 * "Specific time" - the same as previous point, but allow you sync data once per day/week in specific time

Also see the "Last cron execution" under "Synchronization Type" dropdown show you time of the last sync process. If everything configured correct, this value should be changed according with your settings