Solution : https://service.sap.com/sap/support/notes/183095 (SAP Service marketplace login required)
Key words : 
additional key words sap, screen 'create message', english text version, english translation, support line, /3 frontend - interface, support link, support package, english documentation, feedback functions
Related Notes : 
       
| 162207 | Feedback messages: English texts are missing | 
| 153743 | SAP Support Desk: Collective Note | 
| 153742 | SAP Support Line Feedback: System data | 
| 149734 | SAP Support Line Feedback: Notification creation |