concatanate cell based on repeated in other column

[manju 3]

Hi all, I have one macro which concatenates cells if repeated found in other cell but it is not working if cell is empty and we have some value in other cell. For example input is A B No Colour 1 Red 1 White 2 Black 2 Orange Blue Purple My output is showing as D E No Combined Colour 1 Red,White 2 Black,Orange In this case Blue and Purple and getting lost. I am looking for something like : My output should be D E No Combined Colour 1 Red,White 2 Black,Orange Blue Purple Below is my macro:

Sub ConcatenateCellsIfSameValues()
Dim xCol As New Collection
Dim xSrc As Variant
Dim xRes() As Variant
Dim I As Long
Dim J As Long
Dim xRg As Range
xSrc = Range("A1", Cells(Rows.Count, "A").End(xlUp)).Resize(, 2)
Set xRg = Range("D1")
On Error Resume Next
For I = 2 To UBound(xSrc)
xCol.Add xSrc(I, 1), TypeName(xSrc(I, 1)) & CStr(xSrc(I, 1))
Next I
On Error GoTo 0
ReDim xRes(1 To xCol.Count + 1, 1 To 2)
xRes(1, 1) = "No"
xRes(1, 2) = "Combined Color"
For I = 1 To xCol.Count
xRes(I + 1, 1) = xCol(I)
For J = 2 To UBound(xSrc)
If xSrc(J, 1) = xRes(I + 1, 1) Then
xRes(I + 1, 2) = xRes(I + 1, 2) & ", " & xSrc(J, 2)
End If
Next J
xRes(I + 1, 2) = Mid(xRes(I + 1, 2), 2)
Next I
Set xRg = xRg.Resize(UBound(xRes, 1), UBound(xRes, 2))
xRg.NumberFormat = "@"
xRg = xRes
xRg.EntireColumn.AutoFit
End Sub

Appreciated for any help and corrections in my code. Thanks Manju