Refresh error: duplicative value

[PowerBI123456]

Hi, I am getting this error message when refresh in service. The duplicative value power bi shows is not even in my data and I know there are not duplicate values since I removed them in power query. Any ideas?

:	Column 'Unique 2' in Table 'xxx' contains a duplicate value '<pii>XXXXX</pii>' and this is not allowed for columns on the one side of a many-to-one relationship or for columns that are used as the primary key of a table.

[PhilipTreacy]

Hi @PowerBI123456 

Also, double check the Unique 2 column doesn't contain null/blank values.

Regards

Phil

[nandic]

Hi @PowerBI123456 , there were similar topics earlier, based on this link you should check relationships, it might happen that there were some relationships automatically created and should be removed.
https://community.powerbi.com/t5/Desktop/Get-quot-not-allowed-for-columns-on-the-one-side-of-a-many-... 

You could also check relationship types (1:n, n:n...) and if there are any duplicates.

https://stackoverflow.com/questions/43748120/get-not-allowed-for-columns-on-the-one-side-of-a-many-t... 

Hope this will be useful.

Regards,
Nemanja Andic