Solution : https://service.sap.com/sap/support/notes/811588 (SAP Service marketplace login required)
Key words :
flag 'reference filter', terms smart sync, sync type = t01, 40 aba support package 11, symptom delete objects, delta download processin, delete message reason, delete message, download row, action 'delete'
Related Notes :
| 813629 | Filtering function not working correctly |
| 788913 | SAP Mobile Infrastruct. 2.5 SP10 - composite note |