Unable to enhance IT0416

Hi,

I am trying to enhance the IT 0416, but its not working. I used PM01 tcode and in the singlescrn tab I entered the details and generated it. I am able to define a customer field in CI_P0416 include.

But after generating all the objects, when I test it using PA30 tcode, in IT 0416 I am able to see a heading 'Additional Fields' but under that the field which I have defined in CI_P0416 is not coming.

But I am able to enhance all other infotypes. Its working perfectly. Is there any restriction in enhancing IT 0416?

I even tried it in our IDES server also. But there also its not working.

regards,

suresh