Conditions give more flexibility in determining when an event should trigger. You can set as many conditions as you want on a trigger. The event will trigger only when all of the conditions are true. Click here for information on how event conditions are evaluated by the system.
The same conditions are available as an option with some triggers. A trigger can include additional conditions if the Apply Conditions option is enabled for that trigger (see the Event Trigger screen for a description of the Apply Conditions option).
For more information about conditions, click here.