Solution : https://service.sap.com/sap/support/notes/1563345 (SAP Service marketplace login required)
Key words :
prerequisites program error solution apply, mass role assignment ui, terms mass role assignment, error message shown, error message reason, role assignment, click 'finish', review step, 0 sp10/ pc10, authorization
Related Notes :
1562347 | PC3.0 Support Pack 10 - Master Note |
1549787 | Process Control 10.0 Support Package 03 - Master Note |