Hello @carlor
you can use linq here use this code in an Assign Activity
(From roww In DT.AsEnumerable() Group By id=New With {key .i=roww.item("col1"),key .d=roww.item("col2")} Into gg=Group Select gg(0)).copytodatatable
it’ll group the two columns in your case col1 and col2
the workflow should look like this
