Solution : https://service.sap.com/sap/support/notes/898583 (SAP Service marketplace login required)
Key words : 
bapi6107dr-request tables    e_t_requstate structure  rssmrequstate exceptions    request_not_exist_in_dtaif, sapbwnews bw support package 16 netweaver'04 stack 16, remote-enabled function module rssm_api_requeststate_in_dta, ddic structure rssmrequstate, function module rssm_api_requeststate_in_dta delivered, 10 content            import support package 24, 0b            import support package 30, request status reason, function module rssm_api_requeststate_in_dta, i_request import parameter
Related Notes : 
       
| 872278 | SAPBINews NetWeaver 7.0 BI Support Package 06 | 
| 872275 | SAPBWNews BW Support Package 16 NW'04 Stack 16 RIN | 
| 872273 | SAPBWNews BW 3.1 Content Support Package 24 | 
| 872271 | SAPBWNews BW 3.0B Support Package 30 | 
| 839289 | Consulting: BAPI_ISREQUEST_GETSTATUS and QM action |