If audit level is "Off" in EM console and You set the audit properties of one composite in BPEL properties ( e.g Development ) , then the one set in BPEL properties will overide the one set in EM console ( for that composite only ).
In all other caes where the audit level is not "Off" in EM console ( i.e. Development,Production...), the EM console audit level will override the one set in BPEL Properties.
Thanks Lalit, but both these properties are in EM console only.
I am not adding any property in the composite.xml