需求： MIGO 做采购订单收货时，化学品物料启用批次管理和产品生命周期的管理，采购收货或其他入库时，需要输入生产日期，根据批次生成规则，自动（或手工输入优先）生成批次号，针对移动类型：101、511、501、309、561、
批次生成规则：生产日期（年2位，月2位，日2位）+ 流水码（4位），按照每天的收货入库进行Check，例如：生产日期为：2020年12月31日，则2021年04月06日，第一次收货入库时的批次为：2012310001，第二次收货入库时，批次为：2012310002，依次类推。
MIGO收货入库增强函数参考：EXIT_SAPLV01Z_002 ; SMOD: SAPLV01Z;
"替换为国瓷条件 --
CHECK sy-mandt = '302' OR sy-mandt = '602' OR sy-mandt = '802'
OR sy-mandt = '301' OR sy-mandt = '601' OR sy-mandt = '801'.
DATA : lv_prog LIKE d020s-prog,
lv_dnum LIKE d020s-dnum,
lv_datum TYPE datum,
lv_dates TYPE datum,
lv_bklas TYPE bklas,
lv_atwrt TYPE atwrt,
lv_atinn TYPE atinn,
ls_mch1 TYPE ztpp_mch1,
ls_mch2 TYPE ztpp_mch2,
it_dyn TYPE STANDARD TABLE OF dynpread.
DATA: lv_exit TYPE c.
IF x_bncom-werks IS INITIAL.
MESSAGE e027(zpp01) WITH '请输入工厂'. RAISE cancelled.
ENDIF.
PERFORM frm_change_charg IN PROGRAM zmme0003 USING x_bncom CHANGING new_charg lv_exit IF FOUND.
IF lv_exit = abap_true.
RETURN.
ENDIF.
SELECT SINGLE bklas INTO lv_bklas FROM mbew WHERE matnr = x_bncom-matnr AND bwkey = x_bncom-werks.
*CASE lv_bklas.
* WHEN '3010'.
CASE lv_bklas+(2).
WHEN '30'.
CASE sy-tcode.
WHEN 'MIGO' .
lv_prog = 'SAPLMIGO'.
lv_dnum = '0110'.
APPEND VALUE #( fieldname = 'GOHEAD-BUDAT' ) TO it_dyn.
*获取屏幕记账日期
CALL FUNCTION 'DYNP_VALUES_READ'
EXPORTING
dyname = lv_prog
dynumb = lv_dnum
TABLES
dynpfields = it_dyn
EXCEPTIONS
invalid_abapworkarea = 1
invalid_dynprofield = 2
invalid_dynproname = 3
invalid_dynpronummer = 4
invalid_request = 5
no_fielddescription = 6
invalid_parameter = 7
undefind_error = 8
double_conversion = 9
stepl_not_found = 10
OTHERS = 11.
IF sy-subrc = 0.
READ TABLE it_dyn INDEX 1 ASSIGNING FIELD-SYMBOL(<fs_dyn>).
IF sy-subrc = 0.
IF <fs_dyn>-fieldvalue IS NOT INITIAL.
CALL FUNCTION 'CONVERT_DATE_TO_INTERNAL'
EXPORTING
date_external = <fs_dyn>-fieldvalue
IMPORTING
date_internal = lv_datum.
ELSE.
lv_datum = sy-datum.
ENDIF.
ENDIF.
ENDIF.
WHEN 'MSC1N' .
lv_datum = sy-datum.
WHEN 'ZPDAxx'.
DATA(lv_field) = '(SAPLZMM_FG0006)GV_BUDAT'.
ASSIGN (lv_field) TO FIELD-SYMBOL(<lfs_budat>).
IF <lfs_budat> IS ASSIGNED.
lv_datum = <lfs_budat>.
ELSE.
lv_datum = sy-datum.
ENDIF.
ENDCASE.
IF NOT lv_datum IS INITIAL.
SELECT SINGLE * INTO ls_mch1 FROM ztpp_mch1 WHERE datum = lv_datum+2(6).
IF sy-subrc = 0.
ls_mch1-msnro = ls_mch1-msnro + 1.
ELSE.
ls_mch1-datum = lv_datum+2(6).
ls_mch1-msnro = '0001'.
ENDIF.
CALL FUNCTION 'RP_CALC_DATE_IN_INTERVAL'
EXPORTING
date = lv_datum
days = 0
months = 2
signum = '-'
years = 0
IMPORTING
calc_date = lv_dates.
DATA(i_dat_del) = lv_dates+2(6).
DELETE FROM ztpp_mch1 WHERE datum <= i_dat_del ##WARN_OK.
MODIFY ztpp_mch1 FROM ls_mch1 ##WARN_OK.
CONCATENATE ls_mch1-datum ls_mch1-msnro INTO new_charg.
ELSE.
CLEAR new_charg.
ENDIF.
* WHEN '7010' OR '7020'. "成品 , 半成品，
WHEN '70'. "成品 , 半成品
CHECK ( x_bncom-werks = '7500' OR x_bncom-werks = '7599' )
AND ( lv_bklas = '7010' OR lv_bklas = '7020' ).
CALL FUNCTION 'CONVERSION_EXIT_ATINN_INPUT'
EXPORTING
input = 'LSGC_PRODUCTCODE'
IMPORTING
output = lv_atinn.
SELECT SINGLE atwrt INTO lv_atwrt FROM ausp
WHERE objek IN ( SELECT cuobj FROM inob WHERE klart = '023' AND objek = x_bncom-matnr AND obtab = 'MARA' ) "CUOBJ
AND atinn = lv_atinn
AND mafid = 'O'
AND klart = '023'.
IF sy-subrc = 0.
CONDENSE lv_atwrt NO-GAPS.
SELECT SINGLE * INTO ls_mch2 FROM ztpp_mch2 WHERE matnr = x_bncom-matnr AND gjahr = sy-datum+2(2).
IF sy-subrc = 0.
ls_mch2-msnro = ls_mch2-msnro + 1.
ELSE.
*成品半成品流水码保留一年
DATA(nian_tmp) = sy-datum+2(2) - 1.
SELECT COUNT(*) FROM ztpp_mch2 WHERE matnr = x_bncom-matnr AND gjahr = nian_tmp .
IF sy-subrc = 0.
DELETE ztpp_mch2 FROM ls_mch2.
ENDIF.
CLEAR ls_mch2.
ls_mch2-matnr = x_bncom-matnr.
ls_mch2-pdcode = lv_atwrt(2).
ls_mch2-gjahr = sy-datum+2(2).
ls_mch2-msnro = '00001'.
ENDIF.
MODIFY ztpp_mch2 FROM ls_mch2.
CONCATENATE lv_atwrt(2) sy-datum+2(2) ls_mch2-msnro INTO new_charg.
ELSE.
CLEAR new_charg.
ENDIF.
WHEN OTHERS.
ENDCASE.
DATA: lr_werks TYPE RANGE OF aufk-werks,
lr_xchpf TYPE RANGE OF marc-xchpf,
lr_bwart TYPE RANGE OF mseg-bwart.
DATA: lv_prog LIKE d020s-prog,
lv_dnum LIKE d020s-dnum,
it_dyn TYPE STANDARD TABLE OF dynpread,
lv_bwart LIKE mseg-bwart,
lv_hsdat LIKE mcha-hsdat.
* 条件：工厂（GOITEM-WERKS = P101/P121/P900/P000）+ 化学品物料启用批次管理（MARC-XCHPF = ‘X’），
SELECT SINGLE * INTO @DATA(ls_ztmm_enhance)
FROM ztmm_enhance
WHERE prog = 'ZMME0003_001' AND item = '000001' AND active = 'X'.
IF sy-subrc NE 0.
RETURN.
ELSE.
"s1.检查工厂
PERFORM frm_value_split TABLES lr_werks USING ls_ztmm_enhance-value1 .
IF x_bncom-werks NOT IN lr_werks.
RETURN.
ELSE.
lv_exit = abap_true.
ENDIF.
"s2.检查是否启用批次号
SELECT SINGLE xchpf INTO @DATA(lv_xchpf) FROM marc WHERE matnr = @x_bncom-matnr AND werks = @x_bncom-werks.
PERFORM frm_xchpf_split TABLES lr_xchpf USING ls_ztmm_enhance-value2 .
IF lv_xchpf NOT IN lr_xchpf.
RETURN.
ENDIF.
"s3.检查移动类型
CASE sy-tcode.
WHEN 'MIGO' .
lv_prog = 'SAPLMIGO'.
lv_dnum = '0011'.
APPEND VALUE #( fieldname = 'GODEFAULT_TV-BWART' ) TO it_dyn.
*获取屏幕抬头移动类型
CALL FUNCTION 'DYNP_VALUES_READ'
EXPORTING
dyname = lv_prog
dynumb = lv_dnum
TABLES
dynpfields = it_dyn
EXCEPTIONS
invalid_abapworkarea = 1
invalid_dynprofield = 2
invalid_dynproname = 3
invalid_dynpronummer = 4
invalid_request = 5
no_fielddescription = 6
invalid_parameter = 7
undefind_error = 8
double_conversion = 9
stepl_not_found = 10
OTHERS = 11.
IF sy-subrc = 0.
READ TABLE it_dyn INDEX 1 ASSIGNING FIELD-SYMBOL(<fs_dyn>).
IF sy-subrc = 0.
IF <fs_dyn>-fieldvalue IS NOT INITIAL.
lv_bwart = <fs_dyn>-fieldvalue.
ENDIF.
ENDIF.
ENDIF.
WHEN 'MSC1N' .
WHEN 'ZPDAxx'.
WHEN OTHERS."BAPI 做MIGO
ENDCASE.
PERFORM frm_bwart_split TABLES lr_bwart USING ls_ztmm_enhance-value3 .
IF lv_bwart NOT IN lr_bwart.
RETURN.
ENDIF.
ENDIF.
* IF x_bncom-hsdat IS INITIAL.
* MESSAGE e027(zpp01) WITH '请输入工厂'. RAISE cancelled.
* ENDIF.
**获取屏幕项目生产日期
CASE sy-tcode.
WHEN 'MIGO' .
lv_prog = 'SAPLMIGO'.
lv_dnum = '0335'.
CLEAR: it_dyn,it_dyn[].
APPEND VALUE #( fieldname = 'GOITEM-HSDAT' ) TO it_dyn.
CALL FUNCTION 'DYNP_VALUES_READ'
EXPORTING
dyname = lv_prog
dynumb = lv_dnum
TABLES
dynpfields = it_dyn
EXCEPTIONS
invalid_abapworkarea = 1
invalid_dynprofield = 2
invalid_dynproname = 3
invalid_dynpronummer = 4
invalid_request = 5
no_fielddescription = 6
invalid_parameter = 7
undefind_error = 8
double_conversion = 9
stepl_not_found = 10
OTHERS = 11.
IF sy-subrc = 0.
READ TABLE it_dyn INDEX 1 ASSIGNING FIELD-SYMBOL(<fs_dyn_date>).
IF sy-subrc = 0.
IF <fs_dyn_date>-fieldvalue IS NOT INITIAL.
CALL FUNCTION 'CONVERT_DATE_TO_INTERNAL'
EXPORTING
date_external = <fs_dyn_date>-fieldvalue
IMPORTING
date_internal = lv_hsdat.
ENDIF.
ENDIF.
ENDIF.
WHEN 'MSC1N' .
WHEN 'ZPDAxx'.
WHEN OTHERS."BAPI 做MIGO
ENDCASE.
BREAK sapwb0011.
DATA: lv_lsm TYPE numc4.
IF lv_hsdat IS NOT INITIAL.
"MCHB
SELECT MAX( charg )
FROM mchb
WHERE matnr = @x_bncom-matnr
AND werks = @x_bncom-werks
AND substring( charg,1,6 ) = @lv_hsdat+2(6)
INTO @DATA(lv_charg).
IF sy-subrc EQ 0.
lv_lsm = lv_charg+6(4).
lv_lsm = lv_lsm + 1.
ELSE.
lv_lsm = '0001'."改为4位流水码
ENDIF.
CONCATENATE lv_hsdat+2(6) lv_lsm INTO new_charg.
ENDIF.