Project id,wbs Name,network name is not showing in PPB

Dear All,

I am doing a support project,

When i enter into a PPB screen , I can able to see the Project id, Wbs Name Etc.

But when i created a work center and assigned to an activity . i couldnt able to see the discription of the WBS & network in the PPB.

I had done all the checks like , In Project screen all elements are checked in options,In PPB screen all elements are checked in, PPB profile is standard one is renamed as "XX"

I believe that this issue is not with missing customizing.

Kindly help me in this issue.

Regards,

Mahesh