Option Explicit
Sub Consolidation()
Dim DerL&
Cells.ClearContents
With Sheets("Synthèse")
DerL = Range("A65535").End(xlUp).Row + 1
Sheets("AA").Range("A1:E" & Sheets("AA").Range("A65535").End(xlUp).Row).Copy .Cells(DerL, 1)
DerL = Range("A65535").End(xlUp).Row + 1
Sheets("BB").Range("A1:E" & Sheets("BB").Range("A65535").End(xlUp).Row).Copy .Cells(DerL, 1)
DerL = Range("A65535").End(xlUp).Row + 1
Sheets("CC").Range("A1:E" & Sheets("CC").Range("A65535").End(xlUp).Row).Copy .Cells(DerL, 1)
DerL = Range("A65535").End(xlUp).Row + 1
Sheets("DD").Range("A1:E" & Sheets("DD").Range("A65535").End(xlUp).Row).Copy .Cells(DerL, 1)
End With
End Sub