Hello,
Une proposition
Sub messageinfo()
Dim ws As Worksheet
Dim cell As Range
' Définir la feuille de calcul
Set ws = ThisWorkbook.Sheets("Feuil1") ' nom de ta feuille
For Each cell In ws.Range("B4:B21")
With cell.Validation
.Delete
.Add Type:=xlValidateInputOnly
.InputTitle = "Information de Somme"
.InputMessage = "Yann " & Cells(cell.Row, 5) & " + " & "zess " & Cells(cell.Row, 6)
End With
Next cell
End Sub
@+