Hi all I am working on apps, delegation rules. when ever user creates a vacation rule to delegate the responsibility, I need to run a procedure that sends a custom mail to the both. I created a stored procedure to capture delegation rules from wf_routing_rules and used utl_smtp pacakge in it to send the mail. Now i created a trigger such that for each row insert in wf_routing_rules, the procedure is called in the trigger. This created Mutating Error. Is there any other solution. Or can i call this procedure in button click event of the vacation rules screen.If yes where and how.