This row is already part of another table

[gorby (RPA Ninja)]

Good evening
I am a user of UiPath Studio 2025.0.197STS Community edition.

1. What I want to do

After creating an array of DataRow arr_dr, I want to create an empty data table dt2 and use the ForEach activity to iterate through arr_dr with currentRow, then add the DataRow array arr_dr to dt2 using the AddDataRow activity.

2. What I’m struggling with

When I debug the workflow, I get the following error when trying to add currentRow to dt2:
Cause: What could it be?

[Error] Adding data row: This row already belongs to another table.

[yedukondaluaregala (YK)]

@gorby

Instead of adding in Data row, add your item Array row. Check the below thread. You will get more info

Adding data row to data table. this row already belongs to another table

@Automater999 give a try on using row.Itemarray in the field ArrayRow instead It is assumed that the columnstructures are matching and are the same [grafik]

Happy automation