HELP HELP when array value is unknown


My script works but only when I know the row array value…
Im adding 4 rows to the table and im updating rone ow in last… but How to do when the array value is unknown.
kindly also explain if i want to check the last added row insted of running all row to find the expected row to update.

BuildDataTable.xaml (12.1 KB)

@Palaniyappan @Anthony_Humphries @ovi