Solution : https://service.sap.com/sap/support/notes/184948 (SAP Service marketplace login required)
Key words :
infoobject maintenance select radio button 'free selection, local source system object, connected source systems overlap, terms mass activation program, local source system characteristic, source system id, message number r7558, message number r7559, message number r7557, message number r7560
Related Notes :
| 316651 | SAPBWNews for BW 2.0B Support Package 11 |
| 134923 | Char. cannot be activated due to key change |