Hi all,
I'm trying to add a custom column but as soon as I click the query gets the 'yellow !' and an error message is returned.
It's a standard youtube tutorial, and I have made it work in the past. The custom column function is; Table.ColumnNames.
It's only the custom column that causes the instant error on the 'query' conditional works fine.
If anyone can help Workbook attached.
Richard.
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