Refresh Error

[learner03]

I never had this error before while refresh but today I had this error-

My data source is from a custom connector by the warehouse management system guys.

[selimovd]

Hey @learner03 ,

the error message says it already, you have a duplicate value in your table. And as you have a 1:m relationship this is not allowed on your 1 side.

Delete the duplicate value in your data source or in Power Query and the error will disappear.

If you need any help please let me know.

If I answered your question I would be happy if you could mark my post as a solution ✔️ and give it a thumbs up 👍

Best regards

Denis

Blog: WhatTheFact.bi

Follow me: twitter.com/DenSelimovic

[learner03]

@selimovd 

I search for this ITemID in the table and it gave me just one line-

and the relatinship is as below-

[selimovd · Accepted solution]

Hey @learner03 ,

did you refresh the preview and set column profiling to the whole data set?:

From my experience, Power Query is sometimes a little buggy with the display, so maybe check in the data source if there is a duplicate row.

Also mark the ID column and just add as last step to remove duplicates. Like this, the error should be solved:

If you need any help please let me know.

If I answered your question I would be happy if you could mark my post as a solution ✔️ and give it a thumbs up 👍

Best regards

Denis

Blog: WhatTheFact.bi

Follow me: twitter.com/DenSelimovic