ABAP增强开发：更新物料主数据毛重，净重，单位的BAPI使用方法(经典)

业务背景：需要从OA将物料的毛重，净重，单位这3项更新到SAP物料主数据中。

用到了BAPI_MATERIAL_SAVEDATA这个BAPI来做（前提是该BAPI中要有EXTENSIONIN这个参数），但是在结构BAPI_MARA和BAPI_MARAX利没有毛重这个字段。所以我们需要在结构BAPI_TE_MARA和BAPI_TE_MARAX中追加毛重这个字段。

REPORT  Z_WUWEI_0012.* 数据声明DATA:  CLIDAINP  LIKE  BAPI_MARA_GA, "客户端层次物料数据       CLIDAOUT  LIKE  BAPI_MARA,    "客户端层次物料数据       CLIDAOUTX LIKE  BAPI_MARAX,  "BAPI_MARA 的复选框结构       HEADDATA  LIKE  BAPIMATHEAD,  "带有控制信息的表头段       RETURN    LIKE  BAPIRET2,     "返回参数       RETURNMES LIKE BAPI_MATRETURN2 OCCURS 0 WITH HEADER LINE.    DATA:  BEGIN OF W_EXTENSIONIN OCCURS 0.            INCLUDE STRUCTURE BAPIPAREX.  "BAPI 参数 ExtensionIn/ExtensionOut 的参考结构    DATA:  END OF W_EXTENSIONIN.    DATA:  BEGIN OF W_EXTENSIONINX OCCURS 0.            INCLUDE STRUCTURE BAPIPAREXX. "Extension In/Extension Out 的复选框结构    DATA:  END OF W_EXTENSIONINX.    DATA ZZBAPI_TE_MARA LIKE BAPI_TE_MARA.   "客户定义字段:客户级别的物料数据    DATA ZZBAPI_TE_MARAX LIKE BAPI_TE_MARAX. "客户定义字段:客户级别的物料数据* 取出要处理的物料编号PARAMETERS: MATERIAL LIKE BAPI_MARA_GA-MATERIAL, "物料            S_BRGEW  LIKE BAPI_TE_MARA-BRGEW,    "毛重            S_NTGEW  LIKE BAPI_MARA-NET_WEIGHT,  "净重            S_GEWEI  LIKE BAPI_MARA-UNIT_OF_WT.  "单位* 读取物料数据CALL FUNCTION 'BAPI_MATERIAL_GET_ALL'  EXPORTING    MATERIAL                   = MATERIAL  IMPORTING    CLIENTDATA                 = CLIDAINP  TABLES    RETURN                     = RETURNMES.* 抬头数据 ，物料和视图维护HEADDATA-MATERIAL    = MATERIAL. "物料号HEADDATA-BASIC_VIEW  = 'X'.CLIDAOUT-NET_WEIGHT  = S_NTGEW.   "净重CLIDAOUTX-NET_WEIGHT = 'X'.CLIDAOUT-UNIT_OF_WT = S_GEWEI.    "单位CLIDAOUTX-UNIT_OF_WT = 'X'.ZZBAPI_TE_MARA-MATERIAL = HEADDATA-MATERIAL.ZZBAPI_TE_MARA-BRGEW = S_BRGEW.    "毛重ZZBAPI_TE_MARAX-MATERIAL = HEADDATA-MATERIAL.ZZBAPI_TE_MARAX-BRGEW = 'X'.W_EXTENSIONIN-STRUCTURE = 'BAPI_TE_MARA'.W_EXTENSIONIN-VALUEPART1 = ZZBAPI_TE_MARA.APPEND W_EXTENSIONIN.W_EXTENSIONINX-STRUCTURE = 'BAPI_TE_MARAX'.W_EXTENSIONINX-VALUEPART1 = ZZBAPI_TE_MARAX.APPEND W_EXTENSIONINX.* CallBAPICALL FUNCTION 'BAPI_MATERIAL_SAVEDATA'  EXPORTING    HEADDATA                   = HEADDATA    CLIENTDATA                 = CLIDAOUT    CLIENTDATAX                = CLIDAOUTX  IMPORTING    RETURN                     = RETURN  TABLES    RETURNMESSAGES             = RETURNMES    EXTENSIONIN                = W_EXTENSIONIN    EXTENSIONINX               = W_EXTENSIONINX.CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.IF RETURN-TYPE = 'E'.  LOOP AT RETURNMES.    WRITE: / RETURNMES-MESSAGE.  ENDLOOP.ELSEIF RETURN-TYPE = 'S'..  WRITE: / '修改成功 ', MATERIAL, 'OK'.ENDIF.