Bonjour,
Copiez ceci dans le module de la feuille 1
Private Sub Worksheet_Change(ByVal Target As Range)
On Error GoTo Sortie
Application.EnableEvents = False
If Not Intersect(Target, Range("B11:M36")) Is Nothing Then
For j = 11 To 36
If Application.WorksheetFunction.CountA(Range(Cells(j, "B"), Cells(j, "M"))) < 12 And Application.WorksheetFunction.CountA(Range(Cells(j, "B"), Cells(j, "M"))) >= 1 Then
For i = 2 To 13
If Cells(j, i) = "" Then
Cells(j, i).Activate
GoTo Sortie
End If
Next i
End If
Next j
End If
Sortie:
Application.EnableEvents = True
End Sub
Cdlt