Following Doc ID 1161254.1 - EBS 12.1 How to Integrate Business Events in Concurrent Processing?

Hello Experts,

I am following above document and selecting ‘oracle.apps.fnd.concurrent.program.completed’ business event.

and using the following mentioned code.

After enabling (oracle.apps.fnd.concurrent.program.completed) for my concurrent request "Active Users" I am trying to write into the request log by using fnd_log.string.

It doesn't show details. 

QUESTION

Should I be following some other document or I am doing something wrong in my code?

CODE:

CREATE OR REPLACE PACKAGE XXOC_CONC_REQ_BE_PKG AS

--

gc_current_log_level CONSTANT NUMBER :=FND_LOG.G_CURRENT_RUNTIME_LEVEL;

gc_package_name CONSTANT VARCHAR2(25) := 'XXOC_CONC_REQ_BE_PKG';