LDB CMC with LDB_PROCESS FM ?

Question

Dear All,
1. I'm calling the Function Module LDB_PROCESS in my Program.
2. I'm passing CMC LDB to the above FM.
3. I've built the Necessary params to pass onto the FM.
4. But my Form is not getting triggered.
Please let me know the reason !
Enclosed is the code :
Data: wa_mastb like mastb.
SELECT-OPTIONS: s_matnr for wa_mastb-matnr.
DATA: CALLBACK    TYPE TABLE OF LDBCB,
            CALLBACK_WA LIKE LINE  OF CALLBACK.
DATA: gt_SELTAB  TYPE TABLE OF RSPARAMS,
            gwa_SELTAB LIKE LINE  OF gt_SELTAB.
CLEAR CALLBACK_WA.
CALLBACK_WA-LDBNODE     = 'MASTB'.
CALLBACK_WA-GET         = 'X'.
CALLBACK_WA-GET_LATE    = ' '.
CALLBACK_WA-CB_PROG     = SY-REPID.
CALLBACK_WA-CB_FORM     = 'CALL_MASTB'.
APPEND CALLBACK_WA TO CALLBACK.
gwa_SELTAB-KIND    = 'S'.
gwa_SELTAB-SELNAME = 'MATNR'.
Loop at s_matnr.
  MOVE-CORRESPONDING s_matnr to gwa_SELTAB.
  append gwa_SELTAB to gt_seltab.
endloop.
START-OF-SELECTION.
CALL FUNCTION 'LDB_PROCESS'
  EXPORTING
    LDBNAME                           = 'CMC'
*   VARIANT                           =
*   EXPRESSIONS                       =
*   FIELD_SELECTION                   =
*   DYN_NODE_TYPES                    =
  TABLES
    CALLBACK                          = CALLBACK
    SELECTIONS                        = gt_SELTAB.
IF SY-SUBRC <> 0.
Write:/ 'Error in the Call of the LDB FM'.
ENDIF.
end-of-SELECTION.
FORM CALL_MASTB USING PD_NODE LIKE LDBN-LDBNODE
                                              PD_WORKAREA like mastb
                                              PD_MODE     TYPE C
                                              PD_SELECTED TYPE C.
data: ls_mastb like mastb.
  CASE PD_NODE.
    WHEN 'MASTB'.
      LS_mastb = PD_WORKAREA.
      write:/ ls_mastb-matnr, ls_mastb-werks.
  ENDCASE.
ENDFORM.
Regards,
Deepu.K

Answer 1

Hi!
for CMC LDB you must add parameter:
PARAMETERS :
         datuv LIKE stko-datuv  DEFAULT sy-datum.
and fill it
CLEAR gwa_seltab.
gwa_seltab-kind    = 'P'.
gwa_seltab-selname = 'DATUV'.
gwa_seltab-sign    = 'I'.
gwa_seltab-option  = 'EQ'.
gwa_seltab-low = datuv .
APPEND gwa_seltab TO gt_seltab.