Custom error message in SAP application log

Question

Is there a way to add a custom error message to the SAP application log without passing the message variables MSGV1, MSGV2, MSGV3, MSGV4 and the Message class and number. 
We want to pass a custom message from the BAPIRET2-MESSAGE without giving it a Message class and number.  The reason for this is that  we are using class based exceptions instead of the traditional message class with errors.  When we catch the class based exception, we take the error text of the exception and put in in the BAPIRET2-message and set the BAPIRET2-TYPE as 'E'.  Now we want to add this to the SAP application log.
The call to 'BAL_LOG_MSG_ADD' takes a structure BAL_S_MSG which is just like BAPIRET2.  However this function builds the entry to the application log use the message variables MSGV1, MSGV2, MSGV3, MSGV4.  There is no provision to pass in the BAPIRET2 message.
Add message to application log
  CALL FUNCTION 'BAL_LOG_MSG_ADD'
    EXPORTING
     i_log_handle              = app_log_handle
     i_s_msg                   = log_message
Thanks,
Jay

Answer 1

Hi Jay,
Did you see <b>BAL_LOG_EXCEPTION_ADD</b>?
This FM is represented by the structure <b>BAL_S_EXC</b>. This can have various versions as described below:
<b>Data of BAL_S_EXC Structure  /     Use</b>
<b>EXCEPTION</b>  /                              Exception class from which an exception text 
                                                   is added to the log. This field must be filled.
<b>MSGTY</b>  /                                     Message type (MSGTY) of a T100 message.
                                                   This field must also be filled for exceptions.
<b>PROBCLASS,
DETLEVEL,
ALSORT, TIME_STMP</b>  /                Message or exception attributes, such as
                                                    problem class (PROBCLASS, for
                                                    example, "very important"), level of detail
                                                    (DETLEVEL, from 1 to 9), sort criterion
                                                    (ALSORT, unrestricted) and timestamp
                                                    (TIME_STMP). These fields can be displayed
                                                    in the log (except TIME_STMP).
<b>MSG_COUNT</b>   /                            This attribute is not used for exceptions.
Follow the link below for more details:
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/d6/5d7f38f52f923ae10000009b38f8cf/frameset.htm">SAP Help DOc</a>
Hope this helps.
Thanks
Sanjeev