Connect to your Sys Schema by using SQL or Toad create following trigger
Create or replace trigger APPSTRACE
after logon on apps.schema
execute immediate ‘ALTER SESSION SET SQL_TRACE TRUE’;
This will generate Trace for that specific session.
This is some sort of database customization that’s y I never suggest to do it with your production environment hmmm u can do it with your vision / test environment
How to remove this check from your APPS schema
alter trigger appstrace disable;