关于标准PO/PR批量修改功能MEMASSPO/MEMASSRQ中不能进行修改字段的浅析
作者：袁云飞（AlbertYuan）- 微信号yuanalbert
以下内容均为原创，希望对初学者有一些辅助作用，本人主要从事MM/QM/WM的相关工作，不专业处请多多指点，十足干货，码字不易，且行且珍惜，加入粉丝您将能看到更多相关主题文章，你们的关注就是我努力的动力，转载请引用出处，感激不尽；
批量PO的修改是小伙伴们常常需要使用到的功能，这也是国内目前的现状（无奈之举），小伙伴们应该常常遇到过这种情形，用户将大量的PO中某个字段值输错了，等发现的时候其需要修改的数量大大超过了单个ME22N修改的可承受程度，或者时间比较紧急了，临近入库了；再或者处于继承测试阶段的时候需要去大批量的修改某个PO字段的值，等等；
遇到这种情况下小伙伴们常常可以使用MEMASSPO这个事务代码来完成相关的工作（MASS里使用对象类型BUS2012也能达到类似效果）；
但有些小伙伴们常常会遇到这样的问题，明明使用MEMASSPO修改某个字段，最后保存的结果，反馈的消息却是06 022没有进行任何数据的更改；
是不是觉得非常的疑惑，我曾经也经常碰到这种情况，经过从代码级别上分析后发现，这种批量修改PO的功能，其本质还是通过调用PO更改的BAPI来实现的，但该功能在此基础上增加了一些限制条件，导致某些字段是受限字段，使用MEMASSPO是无法完成对其的修改的；
在函数MASS_CHANGE_PURCHASE_ORD_BAPI里我们能看到其调用的更改PO的BAPI过程；
那么我们怎么找到那些被受限而不能更改的字段有哪些呢？其实分析标准代码就能很容易了解；该程序调用了一个函数ME_LIMIT_FIELDS_PO_BAPI，里面就是存放的不允许完成修改的字段；
LOOP AT all_fields.
IF ( all_fields-tabname = 'MASSEKKO' ).
IF ( all_fields-fieldname = 'BSTYP' ) OR
( all_fields-fieldname = 'BSAKZ' ) OR
( all_fields-fieldname = 'STATU' ) OR "v_1669053
( all_fields-fieldname = 'AEDAT' ) OR
( all_fields-fieldname = 'ERNAM' ) OR
( all_fields-fieldname = 'PINCR' ) OR "^_1669053
( all_fields-fieldname = 'LPONR' ) OR
( all_fields-fieldname = 'BWBDT' ) OR
( all_fields-fieldname = 'ANGDT' ) OR
( all_fields-fieldname = 'BNDDT' ) OR
( all_fields-fieldname = 'AUSNR' ) OR
( all_fields-fieldname = 'ABGRU' ) OR
( all_fields-fieldname = 'AUTLF' ) OR
( all_fields-fieldname = 'LBLIF' ) OR
( all_fields-fieldname = 'KNUMV' ) OR
( all_fields-fieldname = 'KALSM' ) OR
( all_fields-fieldname = 'STAFO' ) OR
( all_fields-fieldname = 'EXNUM' ) OR
( all_fields-fieldname = 'STAKO' ) OR
( all_fields-fieldname = 'FRGGR' ) OR
( all_fields-fieldname = 'FRGSX' ) OR
( all_fields-fieldname = 'FRGRL' ) OR
( all_fields-fieldname = 'LANDS' ) OR
( all_fields-fieldname = 'LPHIS' ) OR
( all_fields-fieldname = 'ADRNR' ) OR
( all_fields-fieldname = 'STCEG' ) OR
( all_fields-fieldname = 'ADDNR' ) OR
( all_fields-fieldname = 'KORNR' ) OR
( all_fields-fieldname = 'MEMORY' ) OR
( all_fields-fieldname = 'PROCSTAT' ) OR
( all_fields-fieldname = 'RLWRT' ) OR
( all_fields-fieldname = 'REVNO' ).
DELETE all_fields.
* new with park&hold TS
ELSEIF all_fields-fieldname = 'MEMORYTYPE'.
IF cl_parkhold_active=>parkhold_is_active( ) = cl_mmpur_constants=>yes.
all_fields-displ_only = 'X'.
MODIFY all_fields TRANSPORTING displ_only.
ELSE.
DELETE all_fields.
ENDIF.
ENDIF.
ELSEIF ( all_fields-tabname = 'MASSEKPO' ).
IF ( all_fields-fieldname = 'STATU' ) OR
( all_fields-fieldname = 'AEDAT' ) OR
( all_fields-fieldname = 'BUKRS' ) OR
( all_fields-fieldname = 'KTMNG' ) OR
( all_fields-fieldname = 'UMREZ' ) OR
( all_fields-fieldname = 'UMREN' ) OR
( all_fields-fieldname = 'NETPR' ) OR
( all_fields-fieldname = 'NETWR' ) OR
( all_fields-fieldname = 'BRTWR' ) OR
( all_fields-fieldname = 'AGDAT' ) OR
( all_fields-fieldname = 'MAHNZ' ) OR
( all_fields-fieldname = 'BWTTY' ) OR
( all_fields-fieldname = 'ABSKZ' ) OR
( all_fields-fieldname = 'AGMEM' ) OR
( all_fields-fieldname = 'KZVBR' ) OR
( all_fields-fieldname = 'ABDAT' ) OR
( all_fields-fieldname = 'ABFTZ' ) OR
( all_fields-fieldname = 'ETFZ1' ) OR
( all_fields-fieldname = 'ETFZ2' ) OR
( all_fields-fieldname = 'KZSTU' ) OR
( all_fields-fieldname = 'NOTKZ' ) OR
( all_fields-fieldname = 'LMEIN' ) OR
( all_fields-fieldname = 'ZWERT' ) OR
( all_fields-fieldname = 'NAVNW' ) OR
( all_fields-fieldname = 'ABMNG' ) OR
( all_fields-fieldname = 'BSTYP' ) OR
( all_fields-fieldname = 'EFFWR' ) OR
( all_fields-fieldname = 'XOBLR' ) OR
( all_fields-fieldname = 'ADRNR' ) OR
( all_fields-fieldname = 'STAFO' ) OR
( all_fields-fieldname = 'ETDRK' ) OR
( all_fields-fieldname = 'SOBKZ' ) OR
( all_fields-fieldname = 'ARSNR' ) OR
( all_fields-fieldname = 'ARSPS' ) OR
( all_fields-fieldname = 'INSNC' ) OR
( all_fields-fieldname = 'ZGTYP' ) OR
( all_fields-fieldname = 'EAN11' ) OR
( all_fields-fieldname = 'KO_GSBER' ) OR
( all_fields-fieldname = 'KO_PARGB' ) OR
( all_fields-fieldname = 'KO_PRCTR' ) OR
( all_fields-fieldname = 'KO_PPRCTR' ) OR
( all_fields-fieldname = 'VORAB' ) OR
( all_fields-fieldname = 'PACKNO' ) OR
( all_fields-fieldname = 'FPLNR' ) OR
( all_fields-fieldname = 'GNETWR' ) OR
( all_fields-fieldname = 'STAPO' ) OR
( all_fields-fieldname = 'SATNR' ) OR
( all_fields-fieldname = 'ATTYP' ) OR
( all_fields-fieldname = 'ADRN2' ) OR
( all_fields-fieldname = 'CUOBJ' ) OR
( all_fields-fieldname = 'EILDT' ) OR
( all_fields-fieldname = 'DRDAT' ) OR
( all_fields-fieldname = 'DRUHR' ) OR
( all_fields-fieldname = 'DRUNR' ) OR
( all_fields-fieldname = 'ABELN' ) OR
( all_fields-fieldname = 'ABELP' ) OR
( all_fields-fieldname = 'MLMAA' ) OR
( all_fields-fieldname = 'KZKFG' ) OR
( all_fields-fieldname = 'USEQU' ) OR
( all_fields-fieldname = 'UMSOK' ) OR
( all_fields-fieldname = 'MTART' ) OR
( all_fields-fieldname = 'UPVOR' ) OR
( all_fields-fieldname = 'KZWI1' ) OR
( all_fields-fieldname = 'KZWI2' ) OR
( all_fields-fieldname = 'KZWI3' ) OR
( all_fields-fieldname = 'KZWI4' ) OR
( all_fields-fieldname = 'KZWI5' ) OR
( all_fields-fieldname = 'KZWI6' ) OR
( all_fields-fieldname = 'SIKGR' ) OR
( all_fields-fieldname = 'MFZHI' ) OR
( all_fields-fieldname = 'FFZHI' ) OR
( all_fields-fieldname = 'LFRET' ) OR
( all_fields-fieldname = 'MFRGR' ) OR
( all_fields-fieldname = 'NRFHG' ) OR
( all_fields-fieldname = 'ABUEB' ) OR
( all_fields-fieldname = 'NLABD' ) OR
( all_fields-fieldname = 'NFABD' ) OR
( all_fields-fieldname = 'KZBWS' ) OR
( all_fields-fieldname = 'BONBA' ) OR
( all_fields-fieldname = 'FABKZ' ) OR
( all_fields-fieldname = 'MPROF' ) OR
( all_fields-fieldname = 'KZFME' ) OR
( all_fields-fieldname = 'RDPRF' ) OR
( all_fields-fieldname = 'TECHS' ) OR
( all_fields-fieldname = 'CHG_SRV' ) OR
( all_fields-fieldname = 'CHG_FPLNR' ) OR
( all_fields-fieldname = 'MFRPN' ) OR
( all_fields-fieldname = 'MFRNR' ) OR
( all_fields-fieldname = 'EMNFR' ) OR
( all_fields-fieldname = 'TZONRC' ) OR
( all_fields-fieldname = 'LEBRE' ) OR
( all_fields-fieldname = 'BERID' ) OR
( all_fields-fieldname = 'XCONDITIONS' ) OR
( all_fields-fieldname = 'APOMS' ) OR
( all_fields-fieldname = 'CCOMP' ) OR
( all_fields-fieldname = 'GRANT_NBR' ) OR
( all_fields-fieldname = 'FKBER' ) OR
( all_fields-fieldname = 'STATUS' ) OR
( all_fields-fieldname = 'REFSITE' ).
DELETE all_fields.
ENDIF.
上面代码里的字段，分别就代表了EKKO/EKPO里不能通过该事务代码进行修改的字段清单了；
但请小伙伴们注意，除了这些字段，下面这几个字段也是无法进行修改的（这就是特例）；
Material number (EKPO-EMATN)
Material short text (EKPO-TXZ01)
Order quantity (EKPO-MENGE) 注：ECC高版本和S/4里已经可以修改了
Order unit (EKPO-MEINS) 注：ECC高版本和S/4里已经可以修改了
Net order price (EKPO-NETPR)
Purchase order price unit (EKPO-BPRME)
Plant (EKPO-WERKS)
那么问题来了，不能通过MEMASSPO修改的字段，有些是可以在ME22N里进行修改的，如何“曲线救国”呢，其实用BAPI BAPI_PO_CHANGE就能做出批量修改的程序，哪些不能修改的字段用这个办法进行替代处理，也不失于一种办法；写不来程序？不用担心，这个更改PO的BAPI也支持使用IDOC ALE方式调用的（ALE消息类型PORDCH），配置一下，使用LSMW加载进入就能使用了，非常方便，关于这个后面我们单独篇幅进行讨论；
讲到这里，细心的小伙伴们就要问了，你说了半天PO，那PR呢，是否存在同样的限制字段？恭喜你，答案是肯定的；类似的代码分析来看，批量修改PR的事务代码MEMASSRQ也有限制修改的字段清单；其函数是ME_LIMIT_FIELDS_RQ；
LOOP AT all_fields.
IF ( all_fields-TABNAME = 'EBAN' ).
IF ( all_fields-FIELDNAME = 'BSART' ) OR
( all_fields-FIELDNAME = 'BSTYP' ) OR
( all_fields-FIELDNAME = 'BSAKZ' ) OR
( all_fields-FIELDNAME = 'STATU' ) OR
( all_fields-FIELDNAME = 'ESTKZ' ) OR
( all_fields-FIELDNAME = 'FRGKZ' ) or
( all_fields-FIELDNAME = 'FRGZU' ) OR
( all_fields-FIELDNAME = 'FRGST' ) OR
( all_fields-FIELDNAME = 'ERNAM' ) OR
( all_fields-FIELDNAME = 'ERDAT' ) OR
( all_fields-FIELDNAME = 'BUMNG' ) OR
( all_fields-FIELDNAME = 'PSTYP' ) OR
( all_fields-FIELDNAME = 'KZVBR' ) OR
( all_fields-FIELDNAME = 'KFLAG' ) OR
( all_fields-FIELDNAME = 'VRTYP' ) OR
( all_fields-FIELDNAME = 'ZUGBA' ) OR
( all_fields-FIELDNAME = 'QUNUM' ) OR
( all_fields-FIELDNAME = 'QUPOS' ) OR
( all_fields-FIELDNAME = 'DISPO' ) OR
( all_fields-FIELDNAME = 'SERNR' ) OR
( all_fields-FIELDNAME = 'BVDAT' ) OR
( all_fields-FIELDNAME = 'BVDRK' ) OR
( all_fields-FIELDNAME = 'EBELN' ) OR
( all_fields-FIELDNAME = 'EBELP' ) OR
( all_fields-FIELDNAME = 'BEDAT' ) OR
( all_fields-FIELDNAME = 'BSMNG' ) OR
( all_fields-FIELDNAME = 'LBLNI' ) OR
( all_fields-FIELDNAME = 'BWTAR' ) OR
( all_fields-FIELDNAME = 'XOBLR' ) or
( all_fields-FIELDNAME = 'EBAKZ' ) OR
( all_fields-FIELDNAME = 'RSNUM' ) OR
( all_fields-FIELDNAME = 'SOBKZ' ) OR
( all_fields-FIELDNAME = 'ARSNR' ) OR
( all_fields-FIELDNAME = 'ARSPS' ) OR
( all_fields-FIELDNAME = 'VORAB' ) OR
( all_fields-FIELDNAME = 'PACKNO' ) OR
( all_fields-FIELDNAME = 'KANBA' ) OR
( all_fields-FIELDNAME = 'BPUEB' ) OR
( all_fields-FIELDNAME = 'CUOBJ' ) OR
( all_fields-FIELDNAME = 'FRGGR' ) OR
( all_fields-FIELDNAME = 'FRGRL' ) OR
( all_fields-FIELDNAME = 'UMSOK' ) OR
( all_fields-FIELDNAME = 'KZKFG' ) OR
( all_fields-FIELDNAME = 'SATNR' ) OR
( all_fields-FIELDNAME = 'MNG02' ) OR
( all_fields-FIELDNAME = 'DAT01' ) OR
( all_fields-FIELDNAME = 'ATTYP' ) OR
( all_fields-FIELDNAME = 'ADRNR' ) or
( all_fields-FIELDNAME = 'ADRN2' ) OR
( all_fields-FIELDNAME = 'KZBWS' ) OR
( all_fields-FIELDNAME = 'GSFRG' ) OR
( all_fields-FIELDNAME = 'MPROF' ) OR
( all_fields-FIELDNAME = 'KZFME' ) OR
( all_fields-FIELDNAME = 'SPRAS' ) OR
( all_fields-FIELDNAME = 'TECHSO' ) OR
( all_fields-FIELDNAME = 'MEMORY' ) OR "park&hold TS
( all_fields-FIELDNAME = 'PLIFZ' ).
DELETE all_fields.
以上为本章全部内容，希望小伙伴们能够喜欢；
