Solution : https://service.sap.com/sap/support/notes/725633 (SAP Service marketplace login required)
Key words : 
0b            import support package 21, 10 content            import support package 15, provide advance information, 50            import support package 03, 0b support package 21, referencing characteristic reason, support package, 5 support package 03, 0b patch21, 1 content sp 15
Related Notes : 
       
| 679665 | SAPBWNews BW 3.0B Support Package 21 | 
| 601055 | SAPBWNews BW 3.1 Content Support Package 15 |