Bonjour Le Forum @finarobert
VBA avec votre fichier en Poste #2
Sub Programme2_Doublons()
Dim wsSrc As Worksheet, wsDst As Worksheet
Dim lastRow As Long, i As Long, outRow As Long
Dim idCourant As String, ligneIdentite As String
Dim dict As Object
Dim ta As String, tb As...