Power Query Vlookup Dynamic Column Reference

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I have a query where Column "INDEX" values are the header names of other columns. I want to return the matching value. How can i do this in Power Query? Its basically a Vlookup with a dynamic col_index_num. I cannot seem to find a solution.. Thank you for the help!

 

 

2 Replies
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I'm moving your question to the Excel community for better visibility.

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In query on second table select KEY column, Unpivot other columns and add column with combined index. In query on first table create same combined index (KEY & "any text/symbol which is definitely not in your names" & INDEX), merge on it with second table and expand values only.

 

Please check attached.