This function sends email notifications using UTL_SMTP about an original promise date update for a purchase order. It retrieves email distribution lists and user information from database tables. It then loops through the "to" and "cc" email addresses, opening an SMTP connection, sending the mail, and including details about the PO and update in the email body. Any errors sending the mail will raise exceptions.

1. HOW TO SEND A MAIL FROM UTL_SMTP OR FROM BACK END :
create or replace FUNCTION xxx_popmd_upd_email_notif (p_po_number
VARCHAR2,
p_po_line
NUMBER,
p_po_shipment_num
NUMBER,
p_po_release_num
NUMBER,
p_po_promissed_date
VARCHAR2,
p_justification
VARCHAR2)
RETURN VARCHAR2
AS
v_mail_conn utl_smtp.connection;
v_mail_host VARCHAR2 (30);
v_port_no NUMBER;
v_to_recipients apps.alr_distribution_lists.to_recipients%TYPE;
v_cc_recipients apps.alr_distribution_lists.cc_recipients%TYPE;
v_mail_subject VARCHAR2 (3000);
v_from VARCHAR2 (80) := 'OracleMailerTest@xxx.com';
crlf VARCHAR2 (2) := CHR (13) ||CHR (10);
v_employee_name apps.fnd_user.user_name%TYPE;
v_cp_date VARCHAR2 (30);
v_user_id NUMBER := fnd_profile.value ('USER_ID');
v_req_id NUMBER := fnd_global.conc_request_id;
l_cc VARCHAR2 (3000);
v_cc VARCHAR2 (3000);
l_to VARCHAR2 (2000);
l_tmp VARCHAR2 (3000);
n NUMBER;
BEGIN
SELECT to_recipients,
cc_recipients
INTO v_to_recipients,
v_cc_recipients
FROM apps.alr_distribution_lists
WHERE name = 'ORIGINAL_PROMISE_DATE_UPDATE';
dbms_output.put_line ('Email Distribution List: ' || v_to_recipients);
SELECT DISTINCT NVL (pf.full_name, fu.user_name)
INTO v_employee_name
FROM per_all_people_f pf,
fnd_user fu
WHERE fu.employee_id = pf.person_id(+)
AND user_id = v_user_id;
dbms_output.put_line ('Update by User Name: ' || v_employee_name);
SELECT NVL (TO_CHAR (actual_start_date, 'DD-MON-YYYY HH24:MI:SS'), sysdate)
INTO v_cp_date
FROM fnd_concurrent_requests fcr
WHERE request_id = v_req_id;
dbms_output.put_line ('Update by date: ' || v_cp_date);
SELECT SUBSTR (v.profile_option_value, 1, instr (v.profile_option_value, ':')
- 1),

2. to_number (SUBSTR (v.profile_option_value, 20, 2))
INTO v_mail_host,
v_port_no
FROM fnd_profile_option_values v,
fnd_profile_options o
WHERE v.profile_option_id = o.profile_option_id
AND o.profile_option_name = 'XX_CUS_TOP_EMAIL_SMTP';
l_cc := v_to_recipients;
LOOP
EXIT WHEN l_cc IS NULL;
v_mail_subject := 'Original Promise Date Update - ' || p_po_number || ' by
' || v_employee_name;
v_mail_conn := utl_smtp.open_connection (v_mail_host, v_port_no);
utl_smtp.helo (v_mail_conn, v_mail_host);
utl_smtp.mail (v_mail_conn, v_from);
n := instr (l_cc, ',');
--IF n =0 THEN exit; end if;
l_tmp := SUBSTR (l_cc, 1, n - 1);
IF n = 0 THEN
l_tmp := l_cc;
l_cc := NULL;
END IF;
dbms_output.put_line ('Output1: ' || l_tmp);
dbms_output.put_line ('Output2: ' || l_cc);
--utl_smtp.rcpt( l_tmp );
utl_smtp.rcpt (v_mail_conn, l_tmp);
utl_smtp.data (v_mail_conn, 'Date: ' ||
TO_CHAR (sysdate, 'Dy, DD Mon YYYY hh24:mi:ss')
|| crlf || 'From: ' || v_from
|| crlf || 'Subject: ' ||
v_mail_subject
|| crlf || 'To: ' ||
v_to_recipients
|| crlf || 'Cc: ' ||
v_cc_recipients
|| crlf || 'PO Number: ' ||
p_po_number
|| crlf || 'Line Number: ' ||
p_po_line
|| crlf || 'Shipment Number: ' ||
p_po_shipment_num
|| crlf || 'Release Number: ' ||
p_po_release_num
|| crlf || 'New Original Promised Date: ' ||
p_po_promissed_date
|| crlf || 'Justification: ' ||
p_justification|| crlf
|| crlf || 'Updated By :' ||v_employee_name
|| crlf || 'Date Updated :' ||v_cp_date|| crlf);
l_cc := SUBSTR (l_cc, n + 1);
dbms_output.put_line ('Output3: ' || l_cc);
utl_smtp.quit (v_mail_conn);

3. END LOOP;
v_cc:=v_cc_recipients;
LOOP
EXIT WHEN v_cc IS NULL;
v_mail_subject := 'Original Promise Date Update - ' || p_po_number || ' by
' || v_employee_name;
v_mail_conn := utl_smtp.open_connection (v_mail_host, v_port_no);
utl_smtp.helo (v_mail_conn, v_mail_host);
utl_smtp.mail (v_mail_conn, v_from);
n := instr (v_cc, ',');
--IF n =0 THEN exit; end if;
l_tmp := SUBSTR (v_cc, 1, n - 1);
IF n = 0 THEN
l_tmp := v_cc;
v_cc := NULL;
END IF;
dbms_output.put_line ('Output1: ' || l_tmp);
dbms_output.put_line ('Output2: ' || v_cc);
--utl_smtp.rcpt( l_tmp );
utl_smtp.rcpt (v_mail_conn, l_tmp);
utl_smtp.data (v_mail_conn, 'Date: ' ||
TO_CHAR (sysdate, 'Dy, DD Mon YYYY hh24:mi:ss')
|| crlf || 'From: ' || v_from
|| crlf || 'Subject: ' ||
v_mail_subject
|| crlf || 'To: ' ||
v_to_recipients
|| crlf || 'Cc: ' ||
v_cc_recipients
|| crlf || crlf || 'PO Number: ' ||
p_po_number
|| crlf || 'Line Number: ' ||
p_po_line
|| crlf || 'Shipment Number: ' ||
p_po_shipment_num
|| crlf || 'Release Number: ' ||
p_po_release_num
|| crlf || 'New Original Promised Date: ' ||
p_po_promissed_date
|| crlf || 'Justification: ' ||
p_justification|| crlf
|| crlf || 'Updated By :' ||v_employee_name
|| crlf || 'Date Updated :' ||v_cp_date|| crlf);
v_cc := SUBSTR (v_cc, n + 1);
dbms_output.put_line ('Output3: ' || v_cc);
utl_smtp.quit (v_mail_conn);
END LOOP;
RETURN ('Notification Sent');
EXCEPTION
WHEN utl_smtp.transient_error OR utl_smtp.permanent_error THEN
raise_application_error ( - 20000, 'Unable to Send Mail', true);
WHEN OTHERS THEN

4. raise_application_error ( - 20001, 'Other Errors: '||sqlerrm||';'||
SQLCODE);
END xxx_popmd_upd_email_notif;