One of the Tools being used for SAP Implemention is QuickSizer, which is used to size the SAP Server based on number of users using various modules in SAP. Alert Message is created in the CCMS monitor using TCodes RZ20 and RZ21. The values for Alert AutoReaction Methods are defined using the TCode RZ21, while this particular method is assigned to the Monitoring Tree Element (MTE) in the TCode RZ20. One as well can have an Alert Management System, where alerts from the Entire Landscape can be configured in a Central Monitoring System from where it can trigger a alert mail or SMS to the concerned Administrator