Alerts are assigned methods using the associated monitoring tree elements (MTEs). A method can be a report, a function module, an SAP transaction, or a URL that is to executed as a reaction to an alert. You should differentiate between auto-reaction methods that the system automatically executes as a reaction to an alert (see also Selected Methods of the Alert Monitor, such as an Automatic Alert Notification), and analysis methods that you start manually when analyzing an alert (see Starting Methods).
After you have analyzed an alert and corrected its cause, you no longer need to display the alert in the Alert Monitor: you can complete the alert. This means that it is deleted from the Alert Monitor and saved to an Alert Database. You can display completed alerts from the Alert Database. The Alert Database is also monitored using the Alert Monitor: if the size of the database reaches a defined limit, an alert is triggered. To limit the size of the database, you can reorganize completed alerts.
By default, an alert represents a problem message. You can, however, activate the generation of "green alerts" for selected nodes, that is, an alert of this type for an all-clear or for an explicit message that an action was successful (see Working with All-Clears (Green Alerts)).