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PowerBi Append two table with error message "Expression.Error: The field 'xxx' already exists
Hi I started getting errors this week (3/13/2023) when processing append tables in power query. The message descrinbes there is a certain field has exist but from my understadning, when appendi...
Does adding Table.StopFolding(<<table>>) around both tables still result in an error?
I.e.
Table.Combine({Table.StopFolding(<<table>>), Table.StopFolding(<<table>>)})
Also, what version of Power Bi (or Excel) are you using?
What is your data source type?
While this is probably a bug with the way the data source does combine, it is probably caused by a different casing between the two columns.
The data source is data flow. It actually was acting fine but one day the dataset for the report refresh failed and has the error. If I removed the columns throw out the erros, it will just show the next column giving the errors