Option Explicit
Sub Test()
  
  Dim rngData As Excel.Range
  Dim rngCell As Excel.Range
  Dim strFormula As String
  
  Set rngData = Range("A7").CurrentRegion
  If rngData.Rows.Count = 1 Then Exit Sub '< falls keine Daten vorhanden
  Set rngData = rngData.Resize(rngData.Rows.Count - 1).Offset(1)
  
  With rngData.Columns(rngData.Columns.Count).Offset(0, 1)
    
    'Formel zum Erzeugen des Dupletten-Schlüssels erstellen
    strFormula = "=CONCAT("
    For Each rngCell In rngData.Rows(1).Cells
      strFormula = strFormula & rngCell.Address(False, False, xlR1C1, RelativeTo:=.Cells(1)) & ",""|"","
    Next
    Mid$(strFormula, Len(strFormula)) = ")"
    
    '#Hilfsspalten
    ' - Dupletten-Schlüssel
    .Offset(0, 0).FormulaR1C1 = strFormula
    ' - Anzahl jeder Duplette
    .Offset(0, 1).FormulaR1C1 = "=COUNTIF(" & .Address(True, True, xlR1C1) & ",RC[-1])"
    ' - Id für RemoveDuplicates
    .Offset(0, 2).FormulaR1C1 = "=MATCH(RC[-2]," & .Address(True, True, xlR1C1) & ",0)"
    
    'Werte von Anzahl und Id nach links übernehmen
    .Offset(0, -1).Resize(, 2).Value = .Offset(0, 1).Resize(, 2).Value
    .Offset(0, 1).Resize(, 2).ClearContents
    
    With rngData.Resize(, rngData.Columns.Count + 1)
      'Duplikate anhand Id (=letzte Spalte) entfernen
      Call .RemoveDuplicates(.Columns.Count)
    End With
    
    'Id entfernen
    .ClearContents
    
  End With
  
End Sub
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