Solution : https://service.sap.com/sap/support/notes/1565283 (SAP Service marketplace login required)
Key words : 
prerequisites program error solution apply, policy source category, terms policy management, popup message reason, error message, popup window, policy library, policy oif, 'policy sources', policy sources
Related Notes : 
       
| 1549787 | Process Control 10.0 Support Package 03 - Master Note |