With the option 'Execute&Debug' and flag 'Message Handler' the system will stop in functions such as RRMS_MESSAGE_HANDLING and RS_EXCEPTION_TO_MESSAGE .
These functions are used by the OLAP/analytic engine to to collect message occuring during different steps of processing.
Interesting for analysis:
- the callstack (see red box on the right): with terms of this callstack you can search for SAP notes or find customer exit programs involved
- the content of the l_msg structure to get the full technical details of the message (messages class and number can also be found in SE91)