Solution : https://service.sap.com/sap/support/notes/1576463 (SAP Service marketplace login required)
Key words :
stage authorization data ->object, import modified roles, mass role import, synchronize modified roles, backend system pfcg, 'authorization data, backend system, import modifications, pfcg ->pop-, 'role definition
Related Notes :
| 1544716 | When changing Role in PFCG gets 'User Locked' Error |
| 1502954 | Unhandled Error in ERM - Log says PFCG not authorized |
| 1269943 | Unable to launch PFCG from ERM |