Tweak this code?

[Mel Smith]

I'm using this code to identify duplicates and what I hoped for was that the cell of any duplicates would be highlighted but that isn't happening. All I get is a screen message saying "Ambiguous name detected. Compare data."

My code is:

Sub CompareData()
Application.ScreenUpdating = False
Dim srcWS As Worksheet, desWS As Worksheet, v1 As Variant, v2 As Variant, dic As Object
Set srcWS = Sheets("First Class")
Set desWS = Sheets("T20")
v1 = srcWS.Range("B2", srcWS.Range("B" & Rows.Count).End(xlUp)).Value
v2 = desWS.Range("B2", desWS.Range("B" & Rows.Count).End(xlUp)).Value
Set dic = CreateObject("Scripting.Dictionary")
For i = LBound(v2) To UBound(v2)
If Not dic.exists(v2(i, 1)) Then
dic.Add v2(i, 1), i + 1
End If
Next i
For i = LBound(v1) To UBound(v1)
If dic.exists(v1(i, 1)) Then
desWS.Range("B" & dic(v1(i, 1))).Interior.ColorIndex = 24
End If
Next i
Application.ScreenUpdating = True
End Sub

Many thanks. Mel

P.S. I couldn't use the button to post my code.

 

[Mel Smith]

Problem solved.

Mel

 

[Fluff]

Good to hear you got the solution.
If you would like to post the solution then it is perfectly fine to mark your post as the solution to help future readers. Otherwise, please do not mark a post that doesn't contain a solution.

 

[Mel Smith]

Hi Fluff,

Ok, understood.

Mel