SAP NetWeaver System Logging (SM21)
Use
An SAP system logs system messages, system warnings, and system error messages in system logs. Each instance has a local log in which system messages, warnings, and error messages in this instance are logged.
In transaction SM21 System Loggingyou can use RFC to read logs created locally in all the instances of the SAP system. Instances that do not have an RFC connection can be accessed through the instance agent.