When an alert subscription is configured, the alert notifies the specified user or group of users by e-mail message when the alert fires.
You can configure an alert subscription to send e-mail notifications when the alert reaches a severity of warning, a severity of critical, or both.
You can also configure an alert subscription to escalate after a period of time that you specify. If the alert is not resolved within the escalation period, SAP Control Center e-mails an escalation message to the user or group whose address you provide for escalations, as well as to the primary subscriber. The escalation message is identical to the primary notification message. SAP recommends that if you configure alert subscriptions to escalate, you do so only for the most urgent alerts, those with a severity of critical.