Validation in RE Module

In Transaction FOY2, I want to put a validation that restrict BA change to selected BA. For this I created a Validation Rule by using transaction GGB0

under RE-Lease Out that says as under;

Prerequisite ;      

Company Code = 'XXXX' AND Transaction code = 'FOV2'

Check;

Business Area = '0001'

Message;

Check BA

But this validation rule is not working and one can change the BA without any restriction.

Any Help?