When you create a rule, you must do the following:
Name the rule.
Select an event. The event is the trigger that starts the rule.
Select the types of items that will be affected by the rule.
Add an action. The action is what you want the rule to do when it is triggered.
Save the rule.
Make sure that the rule is enabled.
You can specify many more options to limit which items a rule affects. For example, you can apply a rule to accepted appointments, to items with a certain word in the Subject box, or to items with a high priority. Use Define Conditions to limit your rules further. See Limiting Items Affected by a Rule.