Solution : https://service.sap.com/sap/support/notes/1615568 (SAP Service marketplace login required)
Key words : 
release v1000        sapk-v1003ingrcfnda - sapk-v1005ingrcfnda, software component   grcfnd_a                      grcfnd_a, terms access control 2010, manual pre-implement, access request reason, message class 'grac_wf_request', access request, solution implement, request submission, symptom create
Related Notes : 
       
| 1616686 | UAM:Access request is getting submitted without user details | 
| 1607067 | Master Note for SAP Access Control 10.0 - Support Pack 6 |