Solution : https://service.sap.com/sap/support/notes/1168594 (SAP Service marketplace login required)
Key words : 
terms sap netweaver mobile 7, data object activation fails, - apply support package 07, data orchestration engine, data object deletion, data object activation, data object, happen completely, workbench transaction, completely delete
Related Notes : 
       
| 1084508 | NetWeaver Mobile 7.10 Composite Note for SP03 | 
| 1073391 | NetWeaver Mobile 7.10 Composite Note for SP02 |