Script to update Supplier Bank Payment Method

DECLARE
x_return_status VARCHAR2 (200) := NULL;
x_msg_count NUMBER := 0;
x_msg_data VARCHAR2 (200) := NULL;
t_output VARCHAR2 (200) := NULL;
t_msg_dummy VARCHAR2 (200) := NULL;
l_payee_upd_status iby_disbursement_setup_pub.ext_payee_update_tab_type;
p_external_payee_tab_type iby_disbursement_setup_pub.external_payee_tab_type;
--IBY_PAYMENT_METHODS_B.payment_method_code%TYPE :='CHECK';
p_ext_payee_id_tab_type iby_disbursement_setup_pub.ext_payee_id_tab_type;
--IBY_EXTERNAL_PAYEES_ALL.payee_party_id%TYPE:=12193;
i NUMBER := 0;
BEGIN
fnd_msg_pub.delete_msg (NULL);
fnd_msg_pub.initialize;
--for xyz in abc
--loop
i := i + 1;
p_external_payee_tab_type (i).default_pmt_method := 'EFT';
p_external_payee_tab_type (i).payment_function := 'PAYABLES_DISB';
p_external_payee_tab_type (i).exclusive_pay_flag := 'N';
p_external_payee_tab_type (i).payee_party_id := 167912;
p_ext_payee_id_tab_type (i).ext_payee_id := 17030;
--end loop
apps.fnd_global.apps_initialize (1774, 51308, 200);
mo_global.set_policy_context ('S', 305);
iby_disbursement_setup_pub.update_external_payee
(p_api_version => 1.0,
p_init_msg_list => 'T',
--fnd_api.g_true,
p_ext_payee_tab => p_external_payee_tab_type,
p_ext_payee_id_tab => p_ext_payee_id_tab_type,
x_return_status => x_return_status,
x_msg_count => x_msg_count,
x_msg_data => x_msg_data,
x_ext_payee_status_tab => l_payee_upd_status
);
DBMS_OUTPUT.put_line ('Return Status : ' || x_return_status);
DBMS_OUTPUT.put_line ('Error Message : ' || x_msg_data);

IF x_return_status <> 'S'
THEN
IF x_msg_count > 0
THEN
FOR i IN 1 .. x_msg_count
LOOP
fnd_msg_pub.get (i, fnd_api.g_false, x_msg_data, t_msg_dummy);
DBMS_OUTPUT.put_line ('Error Message : ' || x_msg_data);
t_output := (TO_CHAR (i) || ': ' || x_msg_data);
END LOOP;
END IF;

DBMS_OUTPUT.put_line
( 'Error occured while updating the Payment Method'
|| t_output
);
END IF;

FOR j IN l_payee_upd_status.FIRST .. l_payee_upd_status.LAST
LOOP
DBMS_OUTPUT.put_line ( 'Error Message from table type : '
|| l_payee_upd_status (j).payee_update_msg
);
END LOOP;
END;