Solution : https://service.sap.com/sap/support/notes/619504 (SAP Service marketplace login required)
Key words : 
sap netweaver 2004s bi            import support package 07, sap netweaver 2004s bi, 0b            import support package 13, 1c            import support package 07, termination getwa_not_assigned occurs, support packageis released, 0b support package 13, 1c support package 07, valid data reason, bw support packages
Related Notes : 
       
| 539829 | SAPBWNews BW 3.1 Content Support Package 07 | 
| 523278 | SAPBWNews BW 3.0B Support Package 13 |