MIR7预制发票扣除已经预制的数量（每月多次预制，未即时过账）

ENHANCEMENT 1  ZMIR7_01.    "active version
DATA:LS_YDRSEG LIKE LINE OF YDRSEG.
DATA:L_T_QTY LIKE EKBE-MENGE.
DATA:LY_PRUEFLOS TYPE QPLOS.
DATA:LY_ART TYPE QPART.
DATA:LV_INSMK TYPE MSEG-INSMK.
DATA:lv_BSART TYPE ESART.
DATA:lv_KNTTP TYPE KNTTP.

CHECK RM08M-VORGANG = '1'.

LOOP AT YDRSEG INTO LS_YDRSEG.
L_T_QTY = 0.
CLEAR:LY_PRUEFLOS,LV_INSMK,lv_bSART,lv_KNTTP."排除没做出使用决策的物料凭证

SELECT SINGLE KNTTP INTO LV_KNTTP FROM EKPO WHERE EBELN = LS_YDRSEG-EBELN AND EBELP = LS_YDRSEG-EBELP..
IF LV_KNTTP = 'A' OR LV_KNTTP = 'K' OR LV_KNTTP = 'Z' OR LV_KNTTP = 'F'.
ELSE.
SELECT SINGLE INSMK INTO LV_INSMK FROM MSEG WHERE MJAHR = LS_YDRSEG-LFGJA
AND MBLNR = LS_YDRSEG-LFBNR  AND ZEILE = LS_YDRSEG-LFPOS.
IF LV_INSMK = 'X'.
SELECT SINGLE ART INTO lY_ART FROM QMAT WHERE ART = '01' AND MATNR = LS_YDRSEG-matnr AND WERKS = LS_YDRSEG-werks.
IF sy-subrc = 0.
SELECT SINGLE PRUEFLOS INTO LY_PRUEFLOS
FROM QALS WHERE MJAHR = LS_YDRSEG-LFGJA
AND  MBLNR = LS_YDRSEG-LFBNR  AND ZEILE = LS_YDRSEG-LFPOS AND STAT34 = 'X'.
IF LY_PRUEFLOS IS INITIAL.
DELETE YDRSEG.
CONTINUE.
ENDIF.
ENDIF.
ENDIF.
ENDIF.

SELECT SUM( CASE SHKZG WHEN 'S' THEN MENGE ELSE -1 * MENGE END )
INTO @L_T_QTY
FROM EKBE
WHERE EBELN = @LS_YDRSEG-EBELN
AND   EBELP = @LS_YDRSEG-EBELP
AND   BEWTP IN ('T','Q')
AND   LFGJA = @LS_YDRSEG-LFGJA
AND   LFBNR = @LS_YDRSEG-LFBNR
AND   LFPOS = @LS_YDRSEG-LFPOS.

SELECT SINGLE bsart INTO lv_bsart FROM ekko WHERE ebeln = LS_YDRSEG-EBELN.
IF lv_bsart = '915'.
LS_YDRSEG-MENGE = LS_YDRSEG-WEMNG + L_T_QTY.
ELSE.
LS_YDRSEG-MENGE = LS_YDRSEG-WEMNG - L_T_QTY.
ENDIF.

"DELETE 没有使用决策的物料凭证
LS_YDRSEG-BPMNG = LS_YDRSEG-MENGE.

IF LS_YDRSEG-MENGE <= 0.
DELETE YDRSEG.
CONTINUE.
ELSE.
MODIFY YDRSEG FROM LS_YDRSEG.
ENDIF.

ENDLOOP.
ENDENHANCEMENT.