Función para leer pronósticos de material

  CALL FUNCTION 'MPOP_SINGLE_READ'
       EXPORTING
            MATNR      = IN_MAPRO-MATNR
            WERKS      = IN_WERKS
       IMPORTING
            WMPOP      = WORK_MPOP
       TABLES
            PROWF_TAB  = WORK_PROWF
       EXCEPTIONS
            NOT_FOUND  = 1
            WRONG_CALL = 2
            OTHERS     = 3.

  CALL FUNCTION 'FORECAST_DATA_ARRAY_SELECT'
    EXPORTING
      buf_hsnum_specif = ' '
      buf_versp_specif = ' '
    TABLES
      i_marc           = it_marc
      e_mpop           = ltmpop
      e_prowm          = ltprowm.