Date parameter in Concurrent programs-FND_DATE

Hi All,
Normally when ever we want to use date parameter for pl/sql stored procedures we ecounter a common error saying that format string doenst match...
then we do a data conversion to_date(p_date,'RRRR/MM/DD HH24:MI:SS') and then use it..

The better way of doing it is define the data parameter as varchar2 and use the function FND_DATE.date_to_canonical(p_date).This will direclty convert the text string comming from the concurrent programs to date value

ln_processing_date := NVL (fnd_date.canonical_to_date (p_processing_date), SYSDATE);