Close PO using API po_actions.close_po

Question

HI,
Iam trying to close a po through the api po_actions.close_po
Here is my code
v_value :=
         po_actions.close_po (p_docid           => line_rec.po_header_id,
                              p_doctyp          => 'PO',
                              p_docsubtyp       => 'STANDARD',
                              p_lineid          => line_rec.po_line_id,
                              p_shipid          => line_rec.line_location_id,
                              p_action          => 'CLOSE',
                              p_reason          => 'Close Status Rolled Up',
                              p_calling_mode    => NULL,
                              p_conc_flag       => 'N',
                              p_return_code     => v_return_code,
                              p_auto_close      => 'N',
                              p_action_date     => NULL,
                              p_origin_doc_id   => NULL);
      IF v_value
      THEN
         DBMS_OUTPUT.put_line ('TRUE v_return_code:' || v_return_code);
      ELSE
         DBMS_OUTPUT.put_line ('FALSE v_return_code:' || v_return_code);
      END IF;It is going into FALSE and v_return_code as null . Can Anyone give an insight in this - why the api is not able to close and v)return_code is null.
Thanks, Pradeep

Answer 1

Purchasing lets you automatically close a purchase order once you have received and paid for all items you ordered. This feature lets you concentrate on those purchase orders that are overdue or partially received. You can also manually close purchase orders at any time. Of course, you always have the option to review or reopen a purchase order by adding new lines or creating additional receipt transactions until the purchase order is final closed.
If you designate an invoice as the final match to a purchase order, Payables final closes the purchase order shipment during AutoApproval. You cannot update the status of a final-closed purchase order
Different Closing documents:
Close - You can close at the header, release, line, and shipment levels.
Close for Invoicing - You can close for invoicing at the header, release, line, and shipment levels. Note that if you close for invoicing a purchase order header that is currently open, Purchasing sets the status of all purchase order shipments to Closed for Invoicing, but the purchase order lines and header remain open. This status will not prevent you from matching an invoice to the purchase order.
Close for Receiving - You can close for receiving at the header, release, line, and shipment levels. Note that if you close for receiving a purchase order header that is currently open, Purchasing sets the status of all purchase order shipments to Closed for Receiving, but the purchase order lines and header remain open.
Finally Close - You can final close at the header, release, line, and shipment levels. Purchasing automatically closes fully billed and received purchase orders. However, to prevent further actions on the purchase order, you should use this form to final close purchase orders. Finally Close prevents modifications to the purchase order. Also, if you are using encumbrance or budgetary control, Finally Close automatically creates credit encumbrance journal entries in your general ledger system to reverse the encumbrance that corresponds to the purchase order header, lines, or shipments you are closing, using the action date you specify in Action Date