How to merge 1 column from dataTable into another dataTable


I have 2 datatables, i want to add the column from 1 dataTable into the other dataTable

But my merge activity is throwing the following error - Merge Data Table: Object reference not set to an instance of an object.

The error seems to relates to an object i’m trying to use that hasnt been initialised but i’m not sure what needs to be initialised

Any help appreciated, heres my workflow:
MergeDataTables.xaml (12.3 KB)


Hi @sam.greenwood

Check out the Video and docs


Thanks i’ll check it out

Hello, just looking at your variables, dataTable and DT are declared twice each. Not sure why, but that may be a good place to start.

Ah ok…i’ll take a look thanks

Thats that the issue was, thanks

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