Sub GroupColor2CritèresColBColD()
couleurs = Array(3, 4, 6, 7, 8, 14, 15, 17, 20, 22, 24, 26, 27, 28, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 50, 53)
Set d = CreateObject("Scripting.Dictionary")
Set Rng = Range("a10", [a65000].End(xlUp))
For Each c In Rng
clé = c.Offset(, 1).Value & c.Offset(, 3)
d.Item(clé) = d.Item(clé) + 1
Next c
For Each c In Rng
clé = c.Offset(, 1).Value & c.Offset(, 3)
nocoul = (Application.Match(clé, d.keys, 0)) Mod UBound(couleurs)
If d.Item(clé) > 1 Then c.Resize(, 5).Interior.ColorIndex = couleurs(nocoul)
Next c
End Sub