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Microsoft SQL : The column 'Name' was specified multiple times for '_'.

Hi Community,


In my Power Query, I have a strange error after filtering a column on a value.


The error message is : "Microsoft SQL : The column 'Name' was specified multiple times for '_'"


Despite the error message content, I don't have multiple occurences of column 'Name' in my query.


Thanks in advance for your help

Frequent Visitor

Here is the screenshot of the error



Regular Visitor

I just got this error when Appending two tables together where the columns had the same name but in different case.  One was all Caps and the other was mixed case:  CUSTOMER and Customer.  The crazy part is that the query looks fine in the editor.  You get the error on refresh.

Community Champion
Community Champion

For detail understanding of the issue, Could you Please post the structure/screenshot of table for which you are getting this error. 

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Proud to be a PBI Community Champion

It happens sometime when you have bring data from multiple tables in Table grid.

But when you remove the relationship field it goes away.

Hi pattemmanohar,


Thank you for your quick reply.


I can only screenshot the error for data confidentiality purpose :




Hope this help to better understand the trouble.

Community Champion
Community Champion

Based on the screenshot, I guess the query has more than one field with "Name" as columnname...  Please check and have unique alias names....

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Proud to be a PBI Community Champion

 Verify, if you can see multiple column names with name "Name" by navigativing to "Advanced Editor". You could get this error, when you merge queries, so validate from which query you get duplicate names. And change the column names before doing merge. It solves the issue.

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