Application Log 
An application log is available for both the application system and SAP Event Management.
The application log documents messages, exceptions, and errors on both the application side and the SAP Event Management side. This provides information about communication operations and problems that occurred while event handlers were being created, event messages were being processed, or information was being queried.
You can analyze the logs or the corresponding messages according to different thematic areas and gain more detailed information about the messages.
The application log in the application system provides you with an overview of all the activities relevant to an application object as well as the appropriate event messages. You can reduce the memory space for the application log by deactivating it per business object.
The SAP Event Management application log provides you with an overview of all the activities for an event handler and for its corresponding event messages that have occurred during event handler processing.
If you have the appropriate authorizations, you can specify the following when creating an event handler (transaction /SAPTRX/TSC0TT):
The objects that are logged:
Event handler creation
Event message processing
Updating data from an external source
The level of detail the system is to use when logging (from only high-level processes to logging the details of each process)
You can call the application log from both the event handler overview and the event handler details.
For more information about the application log, see SAP Library on SAP Help Portal at .
Choose transaction /SAPTRX/ASAPLOG for the application log in the SAP system.
For the SAP Event Management application log, on the SAP Easy Access screen, choose .
If you want to deactivate the application log in the application system, in Customizing for SAP Basis Plug-In, choose .
When SAP Event Management processes event messages, it saves entries in the application log. If you want to deactivate logging for these entries in SAP Event Management, set the Disable Logging checkbox in Customizing for SAP Event Management under .