HI Anupama,
Please ensure that you are accessing the part appraiser document, only for the Part Appraiser document the Part Appraiser ID adn roles are shown.
Be dafault Phap_admin_pa only shows the main appraisal document. In order to view the part appraisal documnet, add the part appraisers in the selection screen besides the part appraisrs and then execute, the output will give u all part documents and appraisal document type should be "part document".
Thanks & Regards,
Swati