I am trying to make the following to work: There are two tables in a separate worksheets. I want it to check each cell in worksheet2 column B and find a match from worksheet1 column A. If a match is found then replace the data in worksheet2 column B with a data from a matching row of worksheet1 column B. If a match is not found from a worksheet1 column A then delete entire row in a worksheet2 column B.
Sub match_repl_del()
Dim r1 As Long, rfound, vfound
Dim w1, w2, v As Long
Set w1 = Sheets(3) ' data sheet
Set w2 = Sheets(2) ' target sheet
r1 = 2 'data starting from row 2
Do While Not IsEmpty(w1.Cells(r1, 1))
v = w1.Cells(r1, 1)
rfound = Application.Match(v, w2.Columns(2), 0) ' look for value
If Not IsError(rfound) Then ' found it?
vfound = w2.Cells(rfound, 2)
If w1.Cells(r1, 2) <> vfound Then ' if value does not match sheet1 column b
w2.Cells(rfound, 2) = w1.Cells(r1, 2) ' update based on origin sheet
lastC = w2.Cells(rfound, 1).End(xlToRight).Column
w2.Range(w2.Cells(rfound, 1), w2.Cells(rfound, lastC)).Interior.ColorIndex = 5
Else ' delete entire row on sheet2 if match is not found
w2.Rows(r1).EntireRow.Delete
End If
End If
r1 = r1 + 1
Loop
End Sub