Solution : https://service.sap.com/sap/support/notes/1393505 (SAP Service marketplace login required)
Key words : 
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Related Notes : 
       
| 1635770 | BWA 7.20: Reduce Number of Facets - Performance | 
| 1608979 | BWA 7.20/7.00: Initial reorg fails after adding backup blade | 
| 1605932 | BWA 7.20: Revision 13 | 
| 1594611 | BWA 7.20: Revision 12 | 
| 1594554 | BWA 7.20: Meta data corruption for sparse attributes | 
| 1582973 | BWA 7.20: Revision 11 | 
| 1537173 | BWA 7.20: Revision 8 | 
| 1526049 | BWA 7.00 / 7.20: Optimization when using Intel cpu X5670 | 
| 1524186 | BWA 7.20: Revision 7 | 
| 1522036 | BWA 7.20: Index creation fails | 
| 1499880 | BWA 7.20: Revision 6 | 
| 1484446 | BWA 7.20: Services may not start during update to Revision 5 | 
| 1464264 | BWA 7.20: Parallelizing execution of searches from Explorer | 
| 1464263 | BWA 7.20: Revision 5 | 
| 1464135 | BWA 7.20: Query or load job fails due to config issue | 
| 1452484 | BWA 7.20 Revision 4 | 
| 1448323 | BWA 7.20 Configuration Layering Concept | 
| 1445787 | BWA 7.20 License Key Installation | 
| 1427702 | BWA 7.20 Revision 3 | 
| 1414603 | BWA 7.20 Revision 2 | 
| 1404989 | BWA 7.00 & 7.20: Filling fails due to wrong date format | 
| 1404944 | BWA 7.2:Usage of additional monitoring tools | 
| 1398242 | SIZING SAP BusinessObjects Explorer, accelerated version | 
| 1397539 | SAP BusinessObjects Explorer, acceler. version: Known Issues | 
| 1392570 | BWA 7.20: Installation | 
| 1392526 | BWA 7.20: Update | 
| 1392524 | BWA 7.20: Upgrade/Migration BIA 7.0 to BWA 7.20 | 
| 1392079 | BWA 7.20: Aggregating Key Figures for Min, Max, Sum | 
| 1387879 | BWA 7.20: Error message "structure is not a tree" | 
| 1384526 | SAP BusinessObjects Explorer, acceler. version: New Features | 
| 1380736 | Central Note: SAP BO Explorer, accelerated version | 
| 1370156 | Composite note for BO Explorer accelerated 7.01 SP06 | 
| 1369898 | BOX accelerated: Corrections based on 7.01 Support Package 5 |