Solution : https://service.sap.com/sap/support/notes/1585125 (SAP Service marketplace login required)
Key words : 
prerequisites program error solution implement, terms access control 2010, symptom create, cua parent, child system, parent system, provisioning reason, correction instruction
Related Notes : 
       
| 1591209 | CUA child system-password reset issue | 
| 1591123 | Master Note for SAP Access Control 10.0 - Support Pack 5 |