Identifying the security zone for a particular Iview.

Hello Experts,

Is there any way to find out the security level of a particular iview ? I mean lets say when we create any custom role from standard role using delta link we generally encounter portal exception. Then the procedure is we need to add that role to a particular security zone and then to I view with required permissions.

My question is how can we find out the security zone level required to execute a particular task ?

Thanks

Surender Dahiya