Solution : https://service.sap.com/sap/support/notes/1224229 (SAP Service marketplace login required)
Key words : 
descriptions header attributes persistent staging area, field attributes data type, 0 bi            import support package 19, 1 bi            import support package 07, currency/unit field, form osource_props_adopt reason, format conversion exit, support package, 0 support package 19, 1 support package 7
Related Notes : 
       
| 1300331 | BAPI DataSource: Emulation, migration with CHAR-PSA | 
| 1158395 | SAPBINews NW7.10 BI ABAP Support Package 07 | 
| 1136884 | SAPBINews NW7.00 BI ABAP Support Package 19 |