Solution : https://service.sap.com/sap/support/notes/667288 (SAP Service marketplace login required)
Key words :
terms query currency unit reason, 0 usd + 0 euro = 0 usd rules, 0 euro + 5 usd = 5 usd, 3 euro + 0 usd = 3 euro, 0 euro + 0 usd = 0 euro, 3 euro + 5 euro = 8 euro, currency/unit', 3 euro + 5 usd = 8, query attributes, key figures
Related Notes :
984133 | The operators NDIV0 and NOERR delete unit and currency |
589260 | Units/currencies lost for values = 0 |
586572 | Unwarranted display of '*' or 'X' as unit/currency |