Issue with IBY_DISBURSEMENT_SETUP_PUB.Set_Payee_Instr_Assignment

Hi,

I am trying to execute below code but getting ERROR as "IBY_INVALID_PARTY_CONTEXT".

DECLARE
   l_return_status          VARCHAR2(60);
   l_msg_count              NUMBER(10);
   l_msg_data               VARCHAR2(2000);
   l_assign_id              NUMBER(10);
   l_response               IBY_FNDCPT_COMMON_PUB.Result_rec_type;
   l_payee                  IBY_DISBURSEMENT_SETUP_PUB.PayeeContext_rec_type;

   l_pmt_instrument         IBY_FNDCPT_SETUP_PUB.PmtInstrument_rec_type;
   l_pmt_instrument_assign  IBY_FNDCPT_SETUP_PUB.PmtInstrAssignment_rec_type;
BEGIN

  l_payee.Payment_Function     := 'PAYABLES_DISB';
  l_payee.Party_Id             := 4065;
  l_payee.Org_Type             := 'OPERATING_UNIT';
  l_payee.Org_Id               := 214;
  l_payee.Party_Site_id        := 3021;
  l_payee.Supplier_Site_id     := 1;