How To Make Concurrent Request Status = 'Error' (ie, display as RED)?

I am writing a pl/sql procedure to execute as a concurrent program. If the code detects a certain data condition, I want the procedure to "error" out such that the concurrent request Status displays as 'Error' and highlighted in the color RED. How should the program be coded to make that happen?

Pseudo code:

If a=1 then

   FND_FILE.PUT_LINE(FND_FILE.LOG, 'data error cond found');

   code to make concurrent request display red and status = 'Error';  -- how to do this???

End If;

Your guidance is appreciated.

Martha