Need to loop until last cell need to modify

[elmnas]

Hello guys I made this code so far

but I do specify the last cell but I want instead the script loops to the last used cell

Could someone help me to modify the code a bit?

Thank you in advance

See code below:

Sub CheckMatch()
For i = 2 To 230 ' I Want to modify this part
    If Cells(i, "J") = Cells(i, "K") And Len(Cells(i, "B")) <> 0 And Cells(i, "AB") <> 0 Then
    MsgBox "Row " & i & " match"
    
    
    End If
Next i
End Sub