Macro to assign unique ID


Attached is the excel which has UID as the column name. When i run the macro an unique id should be assigned to each record.
However, unique id should be same for the client name with same 'Plan Renewal Date'. For example in the attached 'R00001' unique id should be assigned to client name 'CEM corporation', 'R00002' unique id should be assinged to client name 'Stabilit America, Inc.'

Format of the unique id should be 'R00001'

Thank you

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TracyVBA DeveloperCommented:
Try this:
Sub GenerateUID()

    Dim lastRow As Long
    Dim i As Long
    Dim UID As String
    Dim UIDNum As String
    lastRow = Range("A" & Rows.Count).End(xlUp).Row
    UID = "R00001"

    'Sort by Client Name and Plan Renewal Date
    Rows("2:" & lastRow).Sort Key1:=Range("A2"), Order1:=xlAscending, Key2:=Range("B2") _
        , Order2:=xlAscending, Header:=xlGuess, OrderCustom:=1, MatchCase:= _
        False, Orientation:=xlTopToBottom, DataOption1:=xlSortNormal, DataOption2 _
    For i = 2 To lastRow
        If i = 2 Then
            Cells(i, 22).Value = UID
        ElseIf Cells(i, 1).Value = Cells(i - 1, 1).Value And Cells(i, 2).Value = Cells(i - 1, 2).Value Then
            Cells(i, 22).Value = UID
            UIDNum = Right(UID, 5) + 1
            UID = "R" & WorksheetFunction.Text(UIDNum, "00000")
            Cells(i, 22).Value = UID
        End If
    Next i
End Sub

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