Function Module not displaying Data

[ramco1917]

Hi

I have below Program but it does not display any data . Function Module display record.

In Parameter i am entering 000000000000000038

REPORT  ZABAP_GETMATERIALDETAILS.

data : wa_mara type mara.
PARAMETERS : p_matnr type mara-matnr.
CALL FUNCTION 'ZABAP_GETMATERIALDETAILS'
  EXPORTING
    IM_MATNR       = p_matnr
* IMPORTING
*   EX_MARA        = wa_mara
.

Write : SY-SUBRC.
IF SY-SUBRC = 0.
* Implement suitable error handling here
 WRITE : WA_MARA-MATNR, WA_MARA-MTART, WA_MARA-MEINS, WA_MARA-MBRSH .
ENDIF.

FUNCTION ZABAP_GETMATERIALDETAILS.
*"----------------------------------------------------------------------
*"*"Local Interface:
*"  IMPORTING
*"     REFERENCE(IM_MATNR) TYPE  MARA-MATNR
*"  EXPORTING
*"     REFERENCE(EX_MARA) TYPE  MARA
*"----------------------------------------------------------------------

SELECT SINGLE * FROM MARA
       INTO EX_MARA
       WHERE MATNR = IM_MATNR.

ENDFUNCTION.

Thanks

[ramco1917]

It works better if you import the values

[abo]

It works better if you import the values

[MateuszAdamus]

Hello ramco_1917

You're not receiving any data back, because the IMPORTING part is commented out.

It is responsible for receiving data from the function.

Kind regards,
Mateusz