Defaulting Rule for Order Management ont_line_def_hdlr.g_record.inventory_item_id returns NULL alway

We have applied 11i RUP patches for PO and OM
Procurement RUP Patch #: 8791241
Order Mangement RUP Patch # 10273104

We have an Defaulting Rule for Order Management - Order Header to default the order Inventory_item_id and ship_from_orgid. this rule calls a PL/SQL API (ont_line_def_hdlr.g_record.-------). But it is not returning the Inventory_id and ship_from_org_id. In that package we assigned the variables as below


ont_line_def_hdlr.g_record.inventory_item_id
ont_line_def_hdlr.g_record.ship_from_org_id

SELECT mc.segment1
INTO v_linha