When we start debugging our session values in APEX, we usually use the DEBUG option in our developertoolbar. But did you know there are different debugging levels? If we take a closer look to our URL once we started the debug we see the following; https:/servername.com/apex/f?p=APP_ID:APP_PAGE_ID:SESSION::YES::: In this case YES mains the debugger is on. … More Oracle APEX – Debugging Levels