Solution : https://service.sap.com/sap/support/notes/511477 (SAP Service marketplace login required)
Key words : 
terms flexible  update  infoobject  infosource  delta upload  initialization selection reason, infosource 0materialto infosource 0material_attr, sap bw business content, master data tables/text tables, sap bw release lower, source system xxxxxxxwas transferred, cross-application master data, master data/text infosource, delta upload procedures, delta upload procedure
Related Notes : 
       
| 515737 | Flexible master data upload for generic InfoObjects |