Solution : https://service.sap.com/sap/support/notes/613278 (SAP Service marketplace login required)
Key words :
enterprise portal stops responding, terms dead lock, futher service packs, update user data, user data reason, circumstances user objects, portal hangs, user profile, sp5 patch 1, prerequisites
Related Notes :
| 448828 | EP 5.0: Central Note for EP-PIN-USM (User Management) |