Bonjour,
Sub incrementer()
Dim cel As Range
ref = Sheets("Feuil2").Range("B4")
With Sheets("Feuil3").ListObjects(1)
Set cel = .DataBodyRange.Columns(1).Find(ref)
If Not cel Is Nothing Then
.DataBodyRange.Cells(cel.Row - .HeaderRowRange.Row, 6) = .DataBodyRange.Cells(cel.Row - .HeaderRowRange.Row, 6) + 1
Else
MsgBox "Référence non trouvée !"
End If
End With
End Sub