Solution : https://service.sap.com/sap/support/notes/1510697 (SAP Service marketplace login required)
Key words :
aggregate-definitions produce initial stepuids, symptom extremely large volumes, statistical data deletion reports, additional manual intervention, delete statistical data, aggregate-definitions, initial stepuid, statistical data, migrated data, delete bw3
Related Notes :
| 1355660 | Several entries in table RSDDSTATAGGRDEF are not deleted |