On the same line, I have created a program which shows how to modify Item Conditions using classes.
Same concept can be applied to modify other data.
***&---------------------------------------------------------------------*
***& Report ZPO_CHANGE
***&
***&---------------------------------------------------------------------*
***&
***&
***&---------------------------------------------------------------------*
**
REPORT ZPO_CHANGE
**
TABLES : ekko.
TYPE-POOLS : mmpur, abap.
DATA : zcl_po TYPE REF TO cl_po_header_handle_mm.
DATA : zcl_item TYPE REF TO CL_PO_ITEM_HANDLE_MM.
DATA : ord_changed type mmpur_bool.
* Definition for header *
DATA : ls_document TYPE mepo_document,
lv_result TYPE mmpur_bool,
ls_mepoheader TYPE mepoheader.
* Definition for Item *
DATA : lt_items TYPE purchase_order_items,
ls_items TYPE purchase_order_item,
lt_mepoitem TYPE STANDARD TABLE OF mepoitem,
ls_mepoitem TYPE mepoitem.
DATA : l_item_conditions_changed TYPE mmpur_bool.
* Definition for Item Conditions *
DATA : lt_conditions TYPE mmpur_tkomv,
lt_conditions1 TYPE mmpur_tkomv,
ls_conditions TYPE komv,
lt_mepocond TYPE mmpur_tkomv.
DATA : lt_models TYPE mmpur_models,
ls_model LIKE LINE OF lt_models.
PARAMETERS : p_ebeln TYPE ekko-ebeln.
MOVE mmpur_po_process TO ls_document-process.
MOVE 'V' TO ls_document-trtyp. " edit mode of Po
MOVE p_ebeln TO ls_document-doc_key(10).
MOVE mmpur_initiator_call TO ls_document-initiator-initiator.
* Create Object of Purchase Order Class *
CREATE OBJECT zcl_po
EXPORTING
im_po_number = p_ebeln
EXCEPTIONS
failure = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
IF zcl_po IS NOT INITIAL.
* Set the state to existing Purchase Order *
zcl_po->set_state( im_state = cl_po_header_handle_mm=>c_available ).
MOVE mmpur_yes TO zcl_po->for_bapi.
* Initialize the environment *
zcl_po->po_initialize( im_document = ls_document ).
* Read PO document *
zcl_po->po_read(
EXPORTING
im_tcode = 'ME22N'
im_trtyp = ls_document-trtyp
im_aktyp = ls_document-trtyp
im_po_number = p_ebeln
im_document = ls_document
IMPORTING
ex_result = lv_result ).
IF lv_result = abap_true.
* --------------------------------------------------*
* Extract PO Item Information *
* --------------------------------------------------*
REFRESH : lt_items.
lt_items = zcl_po->if_purchase_order_mm~get_items( ).
LOOP AT lt_items INTO ls_items .
zcl_item ?= ls_items-item.
Zcl_item->my_parent ?= zcl_po.
.
* -------------------------------------------------*
* Extract PO Item Conditions *
* --------------------------------------------------*
CALL METHOD zcl_item->IF_PURCHASE_ORDER_ITEM_MM~GET_CONDITIONS(
IMPORTING
ex_conditions = lt_conditions ).
*Here if you delete a condition from the internal table it will get deleted in the PO as well.
LOOP AT lt_conditions INTO ls_conditions WHERE KSCHL = 'YFR1'.
ls_conditions-kwert = '1234'.
MODIFY lt_conditions FROM ls_conditions TRANSPORTING kwert.
ENDLOOP.
* set parameters for conditions
zcl_po->my_ibs_firewall_on = mmpur_yes.
CALL METHOD zcl_item->IF_PURCHASE_ORDER_ITEM_MM~SET_CONDITIONS(
EXPORTING
im_conditions = lt_conditions ).
** Add the Instance to the Generic MM Model Object
ls_model-model ?= zcl_item.
APPEND ls_model TO lt_models.
ENDIF.
ENDLOOP.
IF lt_models[] IS NOT INITIAL.
CALL METHOD ZCL_PO->IF_FLUSH_TRANSPORT_MM~START
EXPORTING
IM_MODELS = lt_models[]
EXCEPTIONS
ILLEGAL_CALL = 1
ERROR = 2
OTHERS = 3
.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF .
CALL METHOD ZCL_PO->PO_POST
EXPORTING
IM_UNCOMPLETE = MMPUR_NO
IM_NO_COMMIT = MMPUR_NO
IM_COMMIT_WAIT = MMPUR_yes
EXCEPTIONS
FAILURE = 1
OTHERS = 2
.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD ZCL_PO->PO_CLOSE
.
ENDIF.
ENDIF.
