CRM_MESSAGES_DELETE

Hello Experts,

I have a problem with message deletion.

In CRM_SRV_SDL BAdI , i call a Function Module ( non RFC call ). If this FM fails I log an error message using FUNCTION 'CRM_MESSAGE_COLLECT'

and then the above failed FM is called again  in a TRFC queue in a Back ground task.

Within this queue if the FM is executed correctly I need to delete the error message.

I use the following to achieve that:

*  Clear any old integration error message from CRM order
     ls_idno-sign      = 'I'.
     ls_idno-option    = 'EQ'.
     ls_idno-low-msgid = 'Z_MRS_CRM'.
     ls_idno-low-msgno = '017'.
     APPEND ls_idno TO lt_idno[].

     CALL FUNCTION 'CRM_MESSAGES_DELETE'
       EXPORTING
         it_r_msgidno   = lt_idno
         iv_ref_object  = iv_crm_h_guid
         iv_ref_kind    = 'A'
       EXCEPTIONS
         appl_log_error = 1
         OTHERS         = 2.

Unfortunately this is not working. 'CRM_MESSAGES_DELETE' is neither raising an exception nor deleting the message.

Am i missing something?

Thanks for your help in advance.

Best Regards,

Setu