Solution : https://service.sap.com/sap/support/notes/1548495 (SAP Service marketplace login required)
Key words : 
prerequisites basis change solution apply, symptom successful messages, terms message reason, attached correction instructions, related support package
Related Notes : 
       
| 1561456 | Messages are not displayed in question and survey libraries | 
| 1549787 | Process Control 10.0 Support Package 03 - Master Note | 
| 1529711 | PC3.0 Support Pack 9 - Master Note |