几个函数的使用例子：更新VBRK-XBLNR，IB01设备BOM创建，LI11N输入库存盘点
最近用到一些函数，网上的相关资料不多，这里记录一下。
本文链接：https://www.cnblogs.com/hhelibeb/p/17012303.html
1，使用 RV_INVOICE_HEAD_MAINTAIN 更新VBRK-ZUNOR和VBRK-XBLNR等字段。
场景：金税发票接口需要更新发票相关字段，如VBRK-ZUNOR，VBRK-XBLNR和其它增强字段。
代码示例：
DATA: xkomfk TYPE STANDARD TABLE OF komfk, xkomv TYPE STANDARD TABLE OF komv, xthead TYPE STANDARD TABLE OF theadvb, xvbfs TYPE STANDARD TABLE OF vbfs, xvbpa TYPE STANDARD TABLE OF vbpavb, xvbrk TYPE STANDARD TABLE OF vbrkvb, xvbrp TYPE STANDARD TABLE OF vbrpvb, xvbss TYPE STANDARD TABLE OF vbss. SELECT SINGLE * FROM vbrk WHERE vbeln = @is_nvbrk-vbeln INTO @ls_vbrk. CALL FUNCTION 'RV_INVOICE_DOCUMENT_READ' EXPORTING konv_read = 'X' vbrk_i = ls_vbrk TABLES xkomv = xkomv xvbpa = xvbpa xvbrk = xvbrk xvbrp = xvbrp xkomfk = xkomfk xvbfs = xvbfs xthead = xthead xvbss = xvbss EXCEPTIONS no_authority = 1 OTHERS = 2. IF sy-subrc <> 0. * Implement suitable error handling here ENDIF. ls_vbrk-xblnr = '123'. ls_vbrk-zuonr = '321'. CALL FUNCTION 'RV_INVOICE_HEAD_MAINTAIN' EXPORTING vbrk_i = ls_vbrk TABLES xkomfk = xkomfk xkomv = xkomv xthead = xthead xvbfs = xvbfs xvbpa = xvbpa xvbrk = xvbrk xvbrp = xvbrp xvbss = xvbss. IF sy-subrc <> 0. MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4 INTO DATA(lv_dummy). ENDIF. DATA: ls_vbsk TYPE vbsk. ls_vbsk-mandt = sy-mandt. ls_vbsk-ernam = ls_vbrk-ernam. ls_vbsk-erdat = ls_vbrk-erdat. ls_vbsk-uzeit = ls_vbrk-erzet. CALL FUNCTION 'RV_INVOICE_DOCUMENT_ADD' EXPORTING vbsk_i = ls_vbsk TABLES xkomfk = xkomfk xkomv = xkomv xthead = xthead xvbfs = xvbfs xvbpa = xvbpa xvbrk = xvbrk xvbrp = xvbrp xvbss = xvbss.
2，用 CSAI_BOM_MAINTAIN 实现IB01设备BOM创建、IB02设备BOM修改
场景：批量上传维护设备BOM
下面的代码可以用于创建和新增设备BOM，但不能删除已有设备BOM。如要删除已有设备BOM，需设置t_stpob中的删除标记。
DATA: ecsin LIKE csin, estkob LIKE stkob, estzub LIKE stzub, emastb LIKE mastb, items TYPE sgt_t_bom_comp, t_stpob TYPE tt_stpo. DATA: fl_warning LIKE capiflag-flwarning. ecsin-stlty = 'E' . "设备 ecsin-stlan = lr_data->stlan . ecsin-datuv = sy-datum. ecsin-werks = lr_data->werks. ecsin-equnr = lr_data->equnr1. CALL FUNCTION 'CSAI_BOM_READ' EXPORTING ecsin = ecsin IMPORTING fl_warning = fl_warning TABLES t_stpob = t_stpob EXCEPTIONS error = 1 OTHERS = 2. t_stpob = VALUE #( BASE t_stpob ( posnr = lv_posnr postp = lr_data->postp idnrk = lr_data->idnrk menge = lr_data->menge ) ). CALL FUNCTION 'CSAI_BOM_MAINTAIN' EXPORTING fl_bom_create = 'X' ecsin = ecsin estkob = estkob estzub = estzub fl_commit_and_wait = 'X' IMPORTING fl_warning = fl_warning TABLES t_stpob = t_stpob EXCEPTIONS error = 1 OTHERS = 2.
3，使用 L_INV_COUNT_EXT 实现LI11N输入库存盘点。
上传盘点数据，程序实现LI01N, LI11N, LI20, LI21盘点过账功能。
其中LI01N, LI20, LI21可以用BDC实现，LI11N通过函数实现。
数据来自表LQUA，需要注意如果数量为0，则要设置零库存标识。
DATA: lt_linv TYPE STANDARD TABLE OF e1linvx. DATA: ls_linv TYPE e1linvx. ls_linv-lgnum = '120'. ls_linv-lqnum = '752'. ls_linv-lgort = 'B021'. ls_linv-ivnum = '0000000030'. "LI01N生成的盘点记录 ls_linv-idatu = sy-datum. ls_linv-wdatu = sy-datum. ls_linv-lgpla = 'B05-123'. ls_linv-plpos = '1'. ls_linv-lgtyp = 'B05'. ls_linv-matnr = '000000000020000214'. ls_linv-werks = '1000'. ls_linv-charg = '212922123'. ls_linv-lsonr = '12345'. ls_linv-letyp = 'IP'. ls_linv-menga = 2. ls_linv-lenum = '12345'. ls_linv-altme = 'BOT'. IF ls_linv-menga = 0. ls_linv-kznul = 'X'. ENDIF. INSERT ls_linv INTO TABLE lt_linv. CALL FUNCTION 'L_INV_COUNT_EXT' EXPORTING i_check_only = i_check_only i_commit = 'X' TABLES s_linv = lt_linv EXCEPTIONS either_quantity_or_empty_bin = 1 ivnum_not_found = 2 check_problem = 3 no_count_allowed = 4 l_inv_read = 5 bin_not_in_ivnum = 6 counts_not_updated = 7 lock_error = 8.
需要注意这三个功能涉及的函数都是未发布状态，如果有其它已发布函数可以实现相同功能，请优先考虑已发布函数。