Solution : https://service.sap.com/sap/support/notes/1498121 (SAP Service marketplace login required)
Summary : 
      When executing the report 'RSDMDD_DELETE_BATCH' in SAP NetWeaver BW, users may encounter a short dump with the error 'ASSIGN_TYPE_CONFLICT'. This issue typically occurs during the master data where used check. The error is related to classes "CL_RSMD_UC_METADATA". To resolve this, SAP advises importing specific Support Packages for different BW versions (7.00, 7.01, 7.02, 7.11, 7.30) as detailed in associated SAP Notes, which will provide a correction once released. For immediate resolution, follow the correction instructions provided, and verify using SAP Note 875986 for transaction SNOTE, acknowledging the preliminary version status if noted beforehand.
Key words : 
prerequisites programm error solution sap netweaver bw 7, short dump short text, sap netweaver bw 7, sapbwnews nw bw 7, sap nw bw7, 01 bw abap sp08, 30 bw abap sp01, 11 bw abap sp05, check sap note 875986, 00import support package 25
Related Notes : 
       
| 1471463 | SAPBWNews NW BW 7.01 ABAP SP08 | 
| 1468668 | SAPBWNews NW7.0 BW ABAP Support Package 25 | 
| 1450990 | SAPBWNews NW BW 7.02 ABAP SP05 | 
| 1392433 | SAPBINews NW7.11 BW ABAP Support Package 05 |