Solution : https://service.sap.com/sap/support/notes/546919 (SAP Service marketplace login required)
Key words : 
system issues message cj651, system message cj651, error log online, attached program corrections, system processes, program error, status check, status change, project definition, wbs element
Related Notes : 
       
| 607000 | Required notes for PS-BAPIs | 
| 601105 | Release restrictions R/3 Plug-in 2003.1 | 
| 560887 | Release restrictions R/3 Plug-in 2002.2 |