Read Message for messages class

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Some time we have requirement to read messages to message class so we can write the code as per the customer Requirements


READ TABLE t_msg INTO w_msg INDEX 1.
     IF sy-subrc EQ 0.
     CALL FUNCTION 'BALW_BAPIRETURN_GET2'
       EXPORTING
         type             = w_msg-msgtyp
         cl               = w_msg-msgid
         number           = w_msg-MSGNR
        RETURN           = gt_return.
      if sy-subrc eq 0.
        READ TABLE gt_return INTO gs_return INDEX 1.
         if sy-subrc eq 0.
    MSG1 = gs_return-MESSAGE.
  ENDIF.
    ENDIF.
    ENDIF.

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