Solution : https://service.sap.com/sap/support/notes/123239 (SAP Service marketplace login required)
Key words :
choose 'edit' create message number vp003, choose 'exceptions' choose 'change', additional key words spras, view_kuagv transaction se37 display, transaction se80 select ', sales order processing, problems occur due, missing language indicator, attached advance correction, message class
Related Notes :
| 120071 | "Maintain texts" terminates for external billing docs |