Concurrent Program Recalculate Parameters putting backslash in date values

Hi

EBS R12.2.9

I have a custom concurrent program which needs to be scheduled periodically once every 15 days. It has a data parameter in string format whose default value needs to be SYSDATE - 24 months.

(The parameter value is converted back to date using a date mask 'YYYY/MM/DD HH24:MI:SS' in the code)

In the concurrent program parameter definition I have used

Value Set 100 Characters (I also have tried FND_STANDARD_DATETIME, FND_DATE4_REQUIRED etc but no difference)

Default Type: SQL Statement

Default Value: SELECT TO_CHAR(TRUNC(ADD_MONTHS(SYSDATE, -24)), 'YYYY/MM/DD HH24:MI:SS') FROM DUAL