Solution : https://service.sap.com/sap/support/notes/1003941 (SAP Service marketplace login required)
Key words :
sapbwnews bw support package 20 netweaver'04 stack 20, t100 message rspc 136 manually, sap bw releases 3, asynchronous process fails, synchronous execute call, additional support packages, 50 import support package 20, 0 import support package 13, attached correction instructions, sapbwnews bw 7
Related Notes :
| 986891 | SAPBWNews BW Support Package 20 NetWeaver '04 Stack 20 RIN |
| 914305 | SAPBINews NetWeaver 7.0 BI Support Package 11 |