Remove duplicate in entry only one. I already tried Exists in Collection and List.Contains but seems doesn’t work.
Is your input type Datatable ? And do you want to delete duplicate rows from this Datatable ?
Correct. What im trying to do is identify this duplicate entries by storing to List.
If you want to delete duplicate entries from Datatable then try below expression.
yourDT.DefaultView.ToTable(True, Column1, column2,..)
To add to what @lakshman proposed, you can use the filter datatable activity as well to filter the data in the datatable