I have found many time these queries so decided to write a blog.
loop at table in whch you have PO no.s and you want to update price and do the following.
if you want to change the deleivery date, account assignment data you can follow the same process and update it.
* Updating net price
lw_item-po_item = lw_output-ebelp.
lw_item-net_price = lw_output-netpr.
APPEND lw_item TO lt_item.
lw_itemx-po_item = lw_output-ebelp.
lw_itemx-po_itemx = 'X'.
lw_itemx-net_price = 'X'.
APPEND lw_itemx TO lt_itemx.
* call BAPI to change PO
CALL FUNCTION 'BAPI_PO_CHANGE'
EXPORTING
purchaseorder = lw_output-ebeln
TABLES
return = lt_return
poitem = lt_item
poitemx = lt_itemx.
* The program doesn't update the data. Therefore a commit work must be
* called.
IF p_test EQ 'X'.
CALL FUNCTION 'BAPI_TRANSACTION_ROLLBACK'.
ELSE.
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
wait = 'X'.
ENDIF.
ENDIF.
For changing net price of CONTRACT
CALL FUNCTION 'BAPI_CONTRACT_GETDETAIL'
EXPORTING
purchasingdocument = lw_contract-ebeln
condition_data = 'X'
TABLES
item_cond_validity = lt_condition_v
item_condition = lt_condition.
it is always safe to get the old details when updating contract as Price determination is done based on various condition.
no only keep the conditions you want
DELETE lt_condition WHERE item_no NE lw_contract-ebelp
OR cond_type NE your_value.
* Read the one record left in lt_condition
CLEAR lw_condition.
SORT lt_condition BY serial_id DESCENDING.
CLEAR: lw_condition,lv_serial_id.
LOOP AT lt_condition INTO lw_condition.
IF sy-tabix EQ 1.
lw_condition-cond_value = lw_contract-nnetpr.
lw_condition-cond_p_unt = lw_contract-npeinh.
MODIFY lt_condition FROM lw_condition
TRANSPORTING cond_value
cond_p_unt
WHERE item_no EQ lw_condition-item_no.
lv_serial_id = lw_condition-serial_id.
ELSE.
DELETE lt_condition.
ENDIF.
ENDLOOP.
lw_conditionx-item_no = lw_contract-ebelp.
lw_conditionx-serial_id = lv_serial_id.
lw_conditionx-cond_value = 'X'.
lw_conditionx-cond_p_unt = 'X'.
APPEND lw_conditionx TO lt_conditionx.
* If successful
IF sy-subrc EQ 0.
DELETE lt_condition_v WHERE serial_id NE lv_serial_id.
ENDIF.
LOOP AT lt_condition_v INTO lw_condition_v.
lw_condition_v-valid_from = lw_contract-kdatb.
lw_condition_v-valid_to = lw_contract-kdate.
MODIFY lt_condition_v FROM lw_condition_v
TRANSPORTING valid_from
valid_to
WHERE serial_id = lv_serial_id.
ENDLOOP.
* Pass BAPI parameters than needs to be change
lw_cond_validityx-item_no = lw_contract-ebelp.
lw_cond_validityx-valid_from = 'X'.
lw_cond_validityx-valid_to = 'X'.
APPEND lw_cond_validityx TO lt_cond_validityx.
CALL FUNCTION 'BAPI_CONTRACT_CHANGE'
EXPORTING
purchasingdocument = lw_contract-ebeln
TABLES
item_cond_validity = lt_condition_v
item_cond_validityx = lt_cond_validityx
item_condition = lt_condition
item_conditionx = lt_conditionx
return = lt_return.
ENDIF.
* Rollback
IF p_test EQ 'X'.
CALL FUNCTION 'BAPI_TRANSACTION_ROLLBACK'.
ELSE.
* Commit
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
wait = 'X'.
ENDIF.
ENDIF. " No error befor calling BAPI
Thanks,
Rahul
