Delete Service Line in a PO using BAPI_PO_CHANGE

Question

Hi Experts,
I am able to create a new Service line using BAPI_PO_CHANGE in a Purchase Order. But not able to delete the existing service line. In the BAPI return log, it is showing 'PO Changed', still the service line exists.
Please refer the code below and suggest me the changes required to delete the Service line from PO.
Thanks in advance for your help.
DATA: i_tab TYPE STANDARD TABLE OF ty_tab,
      w_tab TYPE ty_tab,
      poitem TYPE STANDARD TABLE OF bapimepoitem WITH HEADER LINE,
      poitemx TYPE STANDARD TABLE OF bapimepoitemx WITH HEADER LINE,
      poservices TYPE STANDARD TABLE OF bapiesllc WITH HEADER LINE,
      return TYPE STANDARD TABLE OF bapiret2 WITH HEADER LINE,
      poaccount TYPE STANDARD TABLE OF bapimepoaccount WITH HEADER LINE,
      poaccountx TYPE STANDARD TABLE OF bapimepoaccountx WITH HEADER LINE,
      posrvaccessvalues TYPE STANDARD TABLE OF bapiesklc WITH HEADER LINE.
poitem-po_item = '10'.
poitem-pckg_no = '0000001329'.
poitem-item_cat = '0'.
APPEND poitem.
poitemx-po_item = '10'.
poitemx-po_itemx = 'X'.
poitemx-pckg_no = 'X'.
poitemx-item_cat = 'X'.
APPEND poitemx.
poservices-pckg_no = '0000001329'.
poservices-line_no = '0000000001'.
poservices-ext_line = '0000000010'.
poservices-service = '000000000005000010'.
poservices-subpckg_no = '0000000000'.
poservices-delete_ind = 'X'.
APPEND poservices.
CALL FUNCTION 'BAPI_PO_CHANGE'
  EXPORTING
    purchaseorder = '7200000017'
  TABLES
    return        = return[]
    poitem        = poitem[]
    poitemx       = poitemx[]
    poservices    = poservices[].
BREAK-POINT.
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.
Thanks & Regards,
Revanth

Answer 1

In method BAPI_PO_CHANGE, you can only create service items, you cannot change them.
FU BAPI_PO_CHANGE                POSERVICES
Short Text
External Services: Service Lines
Description
This table contains the services and services specifications outline for the purchase order.
Field OUTL_IND is used to flag a line as an outline line. The service lines are assigned to the outline lines using the fields PCKG_NO (for the service line) and SUBPCKG_NO (for the outline line).
The outline hierarchy is mapped using the fields LINE_NO and HI_LINE_NO. Field HI_LINE_NO links to field LINE_NO of the hierarchically superior outline.
Note
In method BAPI_PO_CHANGE, you can only create service items, you cannot change them.
For more information on the individual parameter fields, see the data element documentation in the ABAP Dictionary.
Function Module
BAPI_PO_CHANGE