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Refresh failed - Column 'X' in Table 'Y' contains a duplicate value (This is a Invalid Error)
I have had a report that has been running on the PowerBI.com Service for many months using our on-premise gateway to access our SQL Server and until recently it has been running without issue, refres...
Hi BHinote Before refreshing (if possible) in Desktop, remove the relationship which is being indicated as the problem.
Then complete the refresh.
Once complete, look through your data and see if you can spot the duplicate Value.