HI,
Please create a discussion instead of a document

also

For a notification that is not emailed:
    a. Go to $FND_TOP/sql
    b. Start sqlplus connected as APPS schema user.
    c. Run this command:
       sta wfmlrdbg.sql <NID> <APPLSYS schema user> <APPLSYS's Pwd> where,
                  <NID>.................: Notification ID
                  <APPLSYS schema user>.: Default APPLSYS
                  <APPLSYS's Pwd>.......: Same password as APPS schema user password.
    d. Upload html file that is generated by the command execution....like a document here

You may sanitary the output , just want to see the if the vacation rules are set
if all the users have email address and correct notification preference

You can have the NID - notification ID from the Worklist of the emp3

thanks
Mihai