Solution : https://service.sap.com/sap/support/notes/1631831 (SAP Service marketplace login required)
Key words : 
access request ==> role search screen, prerequisites design issue1, system validity dates, access request, role search, system validity, role export, tcode lookup, excel field, terms ac 10
Related Notes : 
       
| 1613275 | UAM : Unable to add same role to different system. | 
| 1611100 | UAM : Search help for Action is not present in role search | 
| 1597863 | UAM: Role search is not working for Org. assignment request |