Hi,
You need to append seltab value first and them write the SUBMIT syntax. In the above code you are first submitting the program without any Input. SELTAB is used to provide input from the current prog to the destined program. So, your code should be
SELTAB-SELNAME = 'EM_MATNR'.
SELTAB-KIND = 'S'.
SELTAB-SIGN = 'I'.
SELTAB-OPTION = 'BT'.
SELTAB-LOW = S_matnr-low.
SELTAB-HIGH = S_matnr-high.
APPEND SELTAB.
CLEAR SELTAB.
SELTAB-SELNAME = 'EM_WERKS'.
SELTAB-KIND = 'S'.
SELTAB-SIGN = 'I'.
SELTAB-OPTION = 'BT'.
SELTAB-LOW = S_werks-low.
SELTAB-HIGH = S_werks-high.
APPEND SELTAB.
CLEAR SELTAB.
*SELTAB-SELNAME = 'LC_ALV'.
*SELTAB-KIND = 'S'.
*SELTAB-SIGN = 'I'.
*SELTAB-OPTION = 'EQ'.
*SELTAB-LOW = s_lc_alv.
*SELTAB-HIGH =.
*APPEND SELTAB.
*CLEAR SELTAB.
SELTAB-SELNAME = 'S_PSTYP'.
SELTAB-KIND = 'S'.
SELTAB-SIGN = 'I'.
SELTAB-OPTION = 'BT'.
SELTAB-LOW = S_PSTYP-low.
SELTAB-HIGH = S_PSTYP-high.
APPEND SELTAB.
CLEAR SELTAB.
SELTAB-SELNAME = 'S_LIFNR'.
SELTAB-KIND = 'S'.
SELTAB-SIGN = 'I'.
SELTAB-OPTION = 'BT'.
SELTAB-LOW = S_LIFNR-low.
SELTAB-HIGH = S_LIFNR-high.
APPEND SELTAB.
CLEAR SELTAB.
SELTAB-SELNAME = 'S_AEDAT'.
SELTAB-KIND = 'S'.
SELTAB-SIGN = 'I'.
SELTAB-OPTION = 'BT'.
SELTAB-LOW = S_AEDAT-low.
SELTAB-HIGH = S_AEDAT-high.
APPEND SELTAB.
CLEAR SELTAB.
SUBMIT rm06em00 USING SELECTION-SCREEN '1000'
WITH SELECTION-TABLE SELTAB AND RETURN.
"After this statement use Import
Let me know if you are facing the same problem
Regards,
Mounika