Solution : https://service.sap.com/sap/support/notes/693920 (SAP Service marketplace login required)
Key words : 
hr-pl/hr-ce add-, symptom hr-pl specific information, client dependent feature versions delivered, hr-pl specific steps, payroll cluster conversion tool, internal structure rx-version, wage types customizing related, client dependent 'customer features', client dependent customer feature, release 45b/46b/46c
Related Notes : 
       
| 572682 | HR-CEE 100_470 Add-On Upgrade from HR-CE | 
| 572252 | Overview note HR-CEE Add-on | 
| 524948 | Add-on Support Packages and CRT's for add-on HR-CEE | 
| 307775 | Installation process of HR CE country versions |