Sub RechercheV6()
Dim DerLig2 As Long
'deb = Timer
Application.ScreenUpdating = False
DerLig2 = Workbooks("Macro - Mise en forme V2.xlsm").Worksheets("Test").Range("AC" & Rows.Count).End(xlUp).Row
ThisWorkbook.Worksheets("Test").Range(Cells(2, 30), Cells(DerLig2, 30)) = "=iferror(VLOOKUP(RC[-1],'[DB JIT.xlsx]Synthèse JIT'!D3:D4,2,0),0)"
ThisWorkbook.Worksheets("Test").Range(Cells(2, 30), Cells(DerLig2, 30)).Value = ThisWorkbook.Worksheets("Test").Range(Cells(2, 30), Cells(DerLig2, 30)).Value
'MsgBox "Durée: " & Timer - deb
End Sub