1. Object of the macro
a)The data is populated as follows:
b) I want to compare based on the Unique identifier List A and List B
c) Highlight the common items in List A and List B
d) Get populated in Sheet 2, items present in List A, but not in List B
e)Get populated in Sheet 3, items present in List B, but not in List A
2. Code
Sub Comparedatasets()
Application.ScreenUpdating = False
lr1 = Range("A" & Rows.Count).End(xlUp).Row
lr2 = Range("D" & Rows.Count).End(xlUp).Row
Sheets(1).Range("A2", "B2").Copy
Sheets(2).Range("A1").PasteSpecial Paste:=xlPasteValues
Sheets(3).Range("A1").PasteSpecial Paste:=xlPasteValues
check = False
For r = 3 To lr1
Set compare1 = Cells(r, 1)
For q = 3 To lr2
Set Compare2 = Cells(q, 4)
If compare1 = Compare2 Then Compare2.Interior.Color = vbYellow: check = True
Next q
If check = False Then
Range(compare1, compare1.End(xlToRight)).Copy
Sheets(3).Range("A" & Rows.Count).End(xlUp).Offset(1, 0).PasteSpecial _Paste:=xlPasteValues
End If
check = False
Next r
check = False
For r = 3 To lr2
Set compare1 = Cells(r, 4)
For q = 3 To lr1
Set Compare2 = Cells(q, 1)
If compare1 = Compare2 Then Compare2.Interior.Color = vbYellow: check = True
Next q
If check = False Then
Range(compare1, compare1.End(xlToRight)).Copy
Sheets(2).Range("A" & Rows.Count).End(xlUp).Offset(1, 0).PasteSpecial _Paste:=xlPasteValues
End If
check = False
Next r
Application.ScreenUpdating = True
End Sub
3) Result