Need to customize notification message

 All,

I have a requirement to customize the message in the notification in both email and worklist.

The message should include some tables and some source information which we can derive in pl/sql

I put some html tags in 'HTML Body' of the message with <TABLE> and </TABLE> but it doesn't show up.

Can you please let me know if I need to add any other parameters to get the custom messages?

Thanks

Reddy