Solution : https://service.sap.com/sap/support/notes/185042 (SAP Service marketplace login required)
Key words : 
additional key words vl01, order reference, forvalue fields, document currency, solution implement, update rules, unit 31 aredefined, correction program, correction, deliveries
Related Notes : 
       
| 204130 | SIS update: Collective note | 
| 184914 | Transfer of currency from sales order to delivery |