Abdallah,
When I clicked your link I went to the article numbered 857086, but it was about
"Error message when you try to log on to Microsoft Dynamics GP or open a window or a report in Microsoft Dynamics GP: "You don't have security privileges to this window. Contact your system administrator for assistance" "
I don't think this will help us with a calculated field. You probably had a different KB in mind; do you recall its number?
Kind regards,
Leslie