Solution : https://service.sap.com/sap/support/notes/334501 (SAP Service marketplace login required)
Key words :
additional key words delivery group, create message v4245, define message v4245, enter message v4245, sales order item, view v_160mva back, delivery group, sales order, view v_160mva, variable message
Related Notes :
| 74055 | Variable messages: Version maintenance |
| 72688 | Also deleting incomplete delivery groups in VL01 |
| 72481 | Modification: Allow incomplete delivery groups in VL04/VL10 |