I tried to remove alert but still no luck. Actually the problem is, focus not transferring to the cell where duplicate is detected.

Lets say, I have  Data

01 – Row-1

02- Row-2

03- Row-3

02- Row-4

Newly added Row

When i tab at Row-4 it creates new Row and Since 02 is duplicate because we already have it a Row-2, now I want the focus to be at 02 in Row-4 and selected.