Siebel Date top NULL

Hi to all,

I have problem inserting null field (Brokerdate object) in DTYPE_DATE or DTYPE_DATETIME in Siebel 7.
The error message is “unable to insert, the date must be between January 1st 1753 and 31 december 4712”…
Any Idea?
Thx
Sylvain - s.heudes@vistali.com