Message body is empty, when calling wf_notification.send ,

Question

hi,
i am sending a messages to 5 peoples, using wf_notification.send api.
but the when i check the emails, mesage body is empty.
prior to calling wf_notification.send Api,
my message body has been generated by the message attribute of type document(plsqlclob), iam using wf_engine.setItemAttribute and the argument avalue is like this
avalue=> 'plsql:koc_overtime_web_pkg02.show_mgr_message_TST/'||itemtype || ':' || ItemKey) for setting this message attribute(this will generate html)
Shall i need to use any callback function in my send api.
regards.
zameer.

Answer 1

If you are using WF_ENGINE.SetItemAttrText API, I see that you have a workflow item that is launched. In such a case you could just have a notification activity within the same process that will send the notification and the e-mail appropriately.
Why do you use WF_NOTIFICATION.Send using an attribute value that is set from a Workflow item.
Typically WF_NOTIFICATION.Send function is used to send a notification outside of a workflow process. Typically you would use a workflow message definition and corresponding message attribute definition and use the following code to send the notification.
declare
    l_nid   number;
    l_user  varchar2(320) := '&1';
    l_begin_date date;
begin
    l_nid := wf_notification.send(l_user, 'CS_MSGS', 'FYI_MESSAGE');
    wf_notification.setattrtext(l_nid, 'SENDER', 'Oracle Workflow Testing Mailer');
    wf_notification.setattrtext(l_nid, 'MESSAGE_TEXT', ' Message sent at '||to_char(sysdate,'DD-MON-RRRR HH24:MI:SS')||' DB server time');
    wf_notification.denormalize_notification(l_nid);
    commit;
end;
/As you can observe, I do not depend on any workflow item for any attribute information. Please note that in case if there is a requirement to depend on a workflow item, it is required that you need to pass a Callback function and Context to WF_NOTIFICATION.Send function in order for the workflow item attribute information to be copied over to notification attributes.