Solution : https://service.sap.com/sap/support/notes/1385479 (SAP Service marketplace login required)
Key words :
prerequisites programm error solution sap netweaver bi 7, changelog deletion process variant, sap netweaver bi 7, 01 bi abap sp06, 02 bi abap sp02, sap nw bi7, import support package 06, import support package 02, 10 import support package 08, 11 import support package 04
Related Notes :
| 1553608 | Changelog Deletion Variant doesnt work in BW 7.01-7.30 |
| 1410330 | Important corrections in Flexible PSA/Changelog Deletion |