An audit event occurs when a service generates audit data. You can use the options in a service’s Audit properties to specify when a service generates audit data. A service can generate audit data once, twice, or zero times during execution. You can use audit events to invoke other services when a particular service executes. For example, you might want an audit event generated for a critical service to invoke a logging service or a notification service. For more information about specifying when a service generates audit data, see Configuring Service Auditing.