HOW TO ENABLE DIAGNOSTICS ON OAF PAGES

Following Steps will enable to show the debug messages in OAF Pages written using call to pageContext.writeDiagnostics in  Controller Code

1)Enable the Diagnostics by Setting Profile FND:Diagnostics to Yes

2)Once the above profile is set to Yes , you will see Diagnostics on the Screen

3)click on Diagnostics and select "Show Log on Screen" and press Ok

4)Select Statement and press Ok

5)) Once this is done , when you go to any navigation you would be able to see log at   the bottom of the page .

6)Another way is to , add at the end of the URL  below string  and press enter

&aflog_level=STATEMENT&aflog_module=*

6)After that you will see diagnostics at the bottom of screen .

References:

http://apps2fusion.com/at/cp/324-how-to-enable-diagnostics-on-oaf-pages

http://allappsdba.blogspot.ca/2012/04/how-to-debug-self-service-page.html