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Error Adding Dataverse tables from the Default Environment into Power BI Desktop
When I try and add a Dataverse table from my default environment I get the following error Expression.Error: The field 'new_itemclassname' already exists in the record. Details: Name=new_itemcla...
The error means there's a duplicate column name (new_itemclassname) in the Dataverse table schema—likely caused by hidden metadata or relationships in the Default Environment. Power BI can't load it because each field must be unique. Try using a custom view, switching to OData, or loading from a different environment to bypass the issue
PaulineSP Is the only step the Source/Navigation steps? If not, try removing steps until the error goes away and then investigate that step or post what it is doing here.
It literally appears on the initial load when selecting the table - before any steps can be added