Regarding concatenation of two table

[Anonymous]

I am attaching the screenshot of my problem. I am getting this problem while I concatenate two tables. Will you please suggest me a way How to concatenate two table.

[balabhaskarqlik]

Check these to resolve the Duplicate Derived field issues:

https://help.qlik.com/en-US/sense/September2017/Subsystems/Hub/Content/Scripting/derived-fields.htm?...

https://community.qlik.com/thread/286765