Solution : https://service.sap.com/sap/support/notes/1660089 (SAP Service marketplace login required)
Key words :
master data read class, solution sap netweaver bw 7, sap netweaver bw 7, sap nw bw 7, exception itab_duplicate_key occurs, system reads attributes, 30 bw abap sp7, sapbwnews nw bw 7, 30import support package 7, import support package 3
Related Notes :
| 1658505 | SAPBWNews NW7.0 BW ABAP SP29 |
| 1652580 | SAPBWNews NW BW 7.31 ABAP SP3 |
| 1652579 | SAPBWNews NW BW 7.30 ABAP SP7 |
| 1641364 | SAPBWNews NW BW 7.02 ABAP SP11 |
| 1601974 | SAPBWNews NW BW 7.01 ABAP SP11 |