In the following table you will see the reference list of useful transaction codes for mostly used in SAP Basis related to system monitoring.
| Tcodes |
Description
|
|
RZ20
|
CCMS Alert Monitor
|
|
RZ21
|
Configuration of CCMS Alert Monitor
|
|
RZ23N
|
Central Performance History
|
|
SM04
|
List of Active Users
|
|
SM50
|
Process Overview
|
|
SM51
|
Server List
|
|
SMGW
|
Gateway Monitor
|
|
SMICM
|
Internet Communication Manager Monitor
|
|
SMMS
|
Message Server Monitor
|