How to enable FND Debug Log in oracle apps r12

What is FND Debug Log ?

  1. It helps you pinpoint the cause of error in standard Oracle Code, by making debug messages to appear in a centralized table named FND_LOG_MESSAGES
  2. You can design and build your custom extensions in a manner that can easily be debugged. This can be done by calling Oracle delivered API’s in your custom code. 

 A program written in any technology, either form, report, PL/SQL, java concurrent program, OAF has their debug message stored in FND_LOG_MESSAGES.

How does this work? 

How to use FND debug Log to pinpoint the error?

Step 1: Set up profiles for the User / Responsibility to be used to reproduce the issue

FND: Debug Log Enabled -> YES This turns the debugging feature on
FND: Debug Log Filename -> NULL Use when you want debug messages to get stored to a file FND: Debug Log Level -> STATEMENT
FND: Debug log module -> %
If the error pertains to a specific module use the application short name.
Ex: For receivable use FND: Debug log module -> ar%

Log into the Oracle application

Step 2: Since the debugging routine will start writing messages to the table, we want to know which messages pertain to our test. If you are tracking the debug messages for a concurrent request, note down the Concurrent Request id. Otherwise, note down current max value of log sequence retrieved as follows :


Step 3: Run the test case, avoiding extraneous steps to avoid stacking the table.

Step 4:

a) For a concurrent process:

    FROM fnd_log_messages LOG, fnd_log_transaction_context con
   WHERE     request_id = <Conc Req ID>
         AND con.transaction_type = 'REQUEST'
         AND con.transaction_context_id = LOG.transaction_context_id
ORDER BY LOG.log_sequence;

b) For any other debugging:

  FROM fnd_log_messages

 Obtaining the log messages via Oracle Application:

1) Query Profile: %FND%DEBUG%

2) Set the FND: Debug Log Enabled: Yes

3) System Administrator > Help > Debug Logging > View

4) set the values and run any concurrent program
5) Then navigate to the above screen and download the complete fnd log messages report by exporting as a CSV.

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